곱하다

The Korean verb 곱하다 (gophada) primarily means to multiply in a mathematical context, but its usage extends far beyond simple arithmetic into figurative expressions of increasing, amplifying, or compounding something. Understanding this word requires looking at both its literal application in classrooms or daily calculations and its metaphorical application in literature, speeches, and everyday conversations where emotions, efforts, or results are magnified. When you first encounter this word, it is usually in an elementary educational setting where students learn the four basic operations of arithmetic: addition (더하기), subtraction (빼기), multiplication (곱하기), and division (나누기). The act of multiplying two numbers is expressed using this verb. For example, if you want to say 'multiply two by three,' you would say '2에 3을 곱하다.' This literal meaning is the foundation of the word and is universally understood by all Korean speakers from a very young age. However, the beauty of the word 곱하다 lies in its ability to transcend numbers. In a figurative sense, it means to increase something by a significant factor, often exponentially. You might hear someone say that working together will 'multiply our strength' (힘을 곱하다) or that sharing a joyful experience will 'multiply the joy' (기쁨을 곱하다). This metaphorical usage is deeply embedded in Korean culture, which places a high value on community, shared experiences, and collective effort. The word implies that the result of combining forces or sharing emotions is not just a simple addition, but a powerful multiplication that yields a much greater outcome. To fully grasp the depth of this word, one must also understand its grammatical behavior. It is a regular verb that follows standard conjugation rules. In the present tense, it becomes 곱해요 (polite) or 곱한다 (plain). In the past tense, it is 곱했어요 or 곱했다. The noun form, 곱하기, is used not only as the name of the mathematical operation but also as a concept of multiplication itself. Furthermore, the root '곱' is found in other related words, such as 곱빼기, which refers to a double portion of food, a very popular term in Korean dining, especially when ordering noodles like Jajangmyeon. This connection reinforces the idea of doubling or multiplying. In summary, 곱하다 is a versatile and essential verb in the Korean language, bridging the gap between cold, hard numbers and warm, expansive human experiences. Whether you are calculating a budget, discussing a business strategy that amplifies profits, or expressing how a friend's presence multiplies your happiness, this word is the perfect tool to convey the concept of significant increase and amplification.

Literal Meaning

To perform the mathematical operation of multiplication, calculating the product of two or more numbers.

Figurative Meaning

To amplify, increase significantly, or compound an emotion, effort, or effect, often used in motivational or poetic contexts.

Grammatical Function

A transitive verb that requires an object, typically using the particles 에 (to) and 을/를 (object marker).

Using the verb 곱하다 correctly involves understanding its syntactic structure and the appropriate particles that accompany it. Because it is a transitive verb, it inherently requires an object. The most common sentence pattern for the mathematical use of this word is 'A에 B를 곱하다', which translates to 'multiply A by B'. The particle 에 indicates the base number or the target to which the multiplication is applied, while the particle 을/를 marks the multiplier, the number that is doing the multiplying. For instance, '5에 2를 곱하면 10이 됩니다' means 'If you multiply 5 by 2, it becomes 10.' This structure is rigid in formal mathematical contexts but can be slightly more flexible in conversational Korean, where particles are sometimes dropped if the context is clear enough. When using 곱하다 in its figurative sense, the structure often shifts to 'A를 B로 곱하다' or simply 'A를 곱하다' with an implied multiplier. For example, '행복을 두 배로 곱하다' means 'to multiply happiness by two times (double it)'. Here, '두 배로' (by two times) acts as an adverbial phrase modifying the verb. It is also common to see the word used in passive or causative forms in advanced texts, though the base active form is by far the most prevalent. Conjugating 곱하다 is straightforward because it is a regular 하다 verb. In the present formal polite tense, it becomes 곱합니다. In the present informal polite tense, it is 곱해요. In the past tense, you use 곱했습니다 or 곱했어요. For future or presumptive statements, you would say 곱할 것입니다 or 곱하겠어요. When giving a command or instruction, such as a teacher telling students to perform a calculation, the imperative form 곱하세요 or 곱해라 is used. Another crucial aspect of using this word is its nominalization. By changing the verb to 곱하기, you create a noun that represents the act of multiplication or the multiplication sign (x) itself. In spoken Korean, when reading a math equation like '3 x 4 = 12', people say '삼 곱하기 사는 십이'. This is an essential phrase for anyone studying or working in an environment where numbers are discussed. Furthermore, the verb can be combined with other verbs to create compound meanings, although this is less common than using it as a standalone verb. In professional settings, such as finance or engineering, you might encounter phrases like '수익률을 곱하여 계산하다' (calculate by multiplying the profit rate). Understanding these nuances and grammatical structures will allow you to use 곱하다 naturally and accurately in a wide variety of contexts, from helping a child with their math homework to discussing complex financial models or expressing deep emotional sentiments in a poetic manner.

Basic Math Structure

[Number A]에 [Number B]를 곱하다 (Multiply A by B).

Figurative Structure

[Noun]을/를 [Multiplier]로 곱하다 (Multiply [Noun] by [Multiplier]).

Equation Reading

[Number] 곱하기 [Number]는 [Result] (Number times Number equals Result).

The verb 곱하다 is ubiquitous in South Korea, appearing in a wide array of environments ranging from the most formal academic settings to casual, everyday interactions. The most obvious and frequent place you will hear this word is in educational institutions. From elementary schools where young children are memorizing the multiplication tables (구구단) to university lecture halls where engineering and physics students are dealing with complex calculus and differential equations, the word 곱하다 is a staple of the academic vocabulary. Teachers constantly use the imperative forms like 곱하세요 or 곱해 보세요 when instructing students to solve problems. Beyond the classroom, the business and financial sectors are major domains where this word is heavily utilized. In corporate meetings, accountants, financial analysts, and marketers frequently use 곱하다 when discussing projections, calculating return on investment, determining profit margins, or analyzing statistical data. Phrases like '단가에 수량을 곱하다' (multiply the unit price by the quantity) are everyday parlance in offices. You will also hear it in retail and commerce; for example, when a shop owner calculates the total price of multiple identical items, they are mentally or physically performing the act of 곱하기. Furthermore, the word appears in everyday life when dealing with measurements and recipes. If you are cooking and need to double a recipe to serve more guests, you might say '모든 재료의 양에 2를 곱해야 해' (I need to multiply the amount of all ingredients by 2). In the realm of construction, interior design, or even just buying furniture, calculating the area of a room requires multiplying the length by the width, making 곱하다 an essential practical term. Interestingly, the word also finds its way into motivational speeches, self-help books, and poetry. Speakers and writers use the figurative sense of 곱하다 to inspire people to amplify their efforts, multiply their positive impact on society, or compound their happiness through sharing. You might hear a motivational speaker say, '여러분의 열정에 끈기를 곱하십시오' (Multiply your passion by perseverance). In popular culture, such as Korean dramas or variety shows, the word is often used in games or quizzes that involve quick mental math, adding a layer of entertainment to the mathematical operation. Therefore, whether you are listening to a math lecture, attending a business strategy meeting, cooking a large meal, or watching a Korean game show, you are highly likely to encounter the word 곱하다 in both its literal and metaphorical glory.

Education

Used constantly in math classes, from elementary school multiplication tables to advanced university physics.

Business & Finance

Essential for calculating profits, margins, total costs, and statistical probabilities in corporate environments.

Daily Life & Cooking

Used when adjusting recipe portions, calculating square footage for furniture, or figuring out total shopping costs.

When learning and using the word 곱하다, Korean language learners often encounter a few specific stumbling blocks, primarily related to particle usage, confusing it with other mathematical operations, and misapplying its figurative meaning. The most frequent grammatical mistake involves the incorrect use of particles. As mentioned earlier, the standard structure is 'A에 B를 곱하다'. Learners sometimes mistakenly use 'A를 B를 곱하다' (using the object marker twice) or 'A와 B에 곱하다', which sounds unnatural to native speakers. It is crucial to remember that the base number takes '에' and the multiplier takes '를/을'. Another common error is confusing 곱하다 with other basic arithmetic verbs, specifically 더하다 (to add), 빼다 (to subtract), and 나누다 (to divide). Because these words are often learned together in the same vocabulary cluster, learners might accidentally say 곱하다 when they mean to say 더하다, especially in fast-paced conversations or when doing mental math under pressure. A helpful way to avoid this is to associate the 'ㄱ' sound in 곱하다 with the sharp, crossing lines of the multiplication symbol (x), whereas the softer 'ㄷ' in 더하다 can be associated with the plus sign (+). Additionally, learners sometimes struggle with the noun form 곱하기. They might use the verb form incorrectly in an equation context, saying '삼 곱하다 삼은 구' instead of the correct '삼 곱하기 삼은 구' (Three times three is nine). The noun form must be used when reading equations aloud. In terms of figurative usage, mistakes are less about grammar and more about nuance. While you can say '기쁨을 곱하다' (multiply joy), it sounds awkward to use 곱하다 with inherently negative emotions in a standard conversational context unless you are making a specific poetic point. For example, saying '슬픔을 곱하다' (multiply sorrow) is grammatically correct but culturally less common than saying '슬픔이 가중되다' (sorrow is aggravated/added to). Finally, pronunciation can sometimes be a minor issue. The aspirated 'ㅍ' (p) sound in the second syllable needs to be pronounced clearly, and the liaison rule applies when conjugating, so 곱해 (gop-hae) should flow smoothly. By paying close attention to these common pitfalls—mastering the '에/를' particle combination, distinguishing it from other math verbs, using the noun form for equations, and understanding its figurative boundaries—learners can significantly improve their accuracy and sound much more natural when using 곱하다.

Particle Errors

Using incorrect particles like 'A를 B를 곱하다' instead of the correct 'A에 B를 곱하다'.

Vocabulary Confusion

Mixing up 곱하다 (multiply) with 더하다 (add) or 나누다 (divide) during quick speech.

Noun vs. Verb

Using the verb form '곱하다' instead of the noun form '곱하기' when reading math equations aloud.

While 곱하다 is the most direct and common word for 'to multiply' in Korean, there are several other words and expressions that share similar meanings, either in a strict mathematical sense or in a figurative sense of increasing and amplifying. Understanding these synonyms and related terms can greatly enrich your vocabulary and allow you to express nuances more precisely. One of the most closely related words is 배가하다 (baegahada). This word specifically means 'to double' or 'to increase twofold', but it is often used more broadly to mean 'to multiply' in a figurative sense, such as '노력을 배가하다' (to redouble one's efforts). It has a slightly more formal or literary tone compared to the everyday 곱하다. Another related term is 증대시키다 (jeungdaesikida), which means 'to increase' or 'to enlarge'. While it doesn't have the strict mathematical implication of multiplication, it shares the figurative outcome of making something significantly larger or more impactful. For example, '수익을 증대시키다' (to increase profits) could be the result of multiplying sales. Similarly, 늘리다 (neullida) is a very common native Korean verb meaning 'to increase' or 'to lengthen'. You might use 늘리다 when talking about increasing a quantity, which is the practical result of 곱하다. In academic or scientific contexts, you might encounter the word 증식하다 (jeungsikhada), which means 'to multiply' or 'to reproduce', primarily used in biology to describe cells or organisms multiplying, rather than numbers. It is important to distinguish between the mathematical multiplication (곱하다) and biological multiplication (증식하다). Furthermore, the concept of adding weight or aggravating a situation can be expressed with 가중시키다 (gajungsikida). While this translates more closely to 'to add weight to' or 'to aggravate', it shares the idea of compounding an effect, similar to multiplying a negative outcome. When discussing the opposite operations, the primary antonyms are 나누다 (to divide), 빼다 (to subtract), and 줄이다 (to reduce). Knowing these opposites helps solidify the meaning of 곱하다 in your mind. By familiarizing yourself with these similar and related words, you can choose the most appropriate term for your specific context, whether you are solving a math problem, describing business growth, or talking about biological processes. 곱하다 remains the core, indispensable verb for the arithmetic operation, but its synonyms provide the color and precision needed for advanced fluency.

배가하다 (To double/redouble)

Used formally to express doubling an effort, effect, or quantity.

증대시키다 (To increase/enlarge)

A formal term for making something larger in size, amount, or degree.

증식하다 (To multiply/reproduce)

Used primarily in biology to describe the multiplication of cells or organisms.