就是说

Often interchangeable with '就是说'. '也' can add a slight nuance of 'this also means'.

Emphasizes rephrasing something in different words for clarity.

Used to summarize or conclude, getting to the main point.

Learners often struggle with '就是说' because its direct translation ('just be saying') doesn't clearly convey its actual use as an introductory phrase for clarification or emphasis. It can also be confused with other phrases that introduce explanations.

'就是说' directly introduces a clarification, rephrasing, or a more direct explanation of what was just said. It's like saying 'in other words' or 'what I mean is...'. It often serves to simplify or elaborate.

我累了，就是说，我不想做饭了。 (I'm tired, that is to say, I don't want to cook anymore.)

Very similar to '就是说', the '也' (also) can make learners wonder if there's a significant difference in meaning or usage, leading to hesitation on which to choose.

'也就是说' is often interchangeable with '就是说'. The '也' can sometimes add a slight nuance of 'this also means' or 'another way to put it is'. In many contexts, they function identically, both introducing a rephrasing or explanation.

他今天不来，也就是说，我们取消会议吧。 (He's not coming today, in other words, let's cancel the meeting.)

This phrase literally means 'change speech to say', which clearly indicates rephrasing. However, learners might be unsure when to use it versus '就是说' or '也就是说'.

'换句话说' strongly emphasizes rephrasing something in different words, often to make it clearer or to present it from another angle. While it shares the function of clarification, it specifically highlights the act of using alternative wording.

他很有钱，换句话说，他不需要工作。 (He is very rich, in other words, he doesn't need to work.)

While '总之' means 'in short' or 'in a word', its function of summarizing can sometimes overlap with the clarifying aspect of '就是说', especially when a clarification acts as a summary.

'总之' is used to summarize or conclude a previous statement or discussion. It's about getting to the main point or the bottom line, rather than rephrasing or elaborating on a single idea. It usually comes after a series of points.

我们有很多问题，总之，我们需要一个新的计划。 (We have many problems, in short, we need a new plan.)

'其实' means 'actually' or 'in fact'. While different in primary meaning, it can introduce an explanation that clarifies a misunderstanding, making it seem similar to '就是说' in certain contexts.

'其实' introduces a fact or a truth that might be contrary to what was previously assumed or said. It's about revealing reality, often correcting a misconception, rather than just rephrasing something for clarity.

我看起来很平静，其实我很紧张。 (I look calm, actually I'm very nervous.)