Word Network: killingly

Eliminating things forever (Do away with)

prepositions

C1

Making suggestions with "Let's"

verb_moods

A2

English Timing Idioms: In the Nick of Time & High Time

advanced_syntax

C1

Wh-ever Clauses: Using 'Whatever' and 'Whoever' as Subjects (Nominal Relatives)

sentence_structure

C2

Past Perfect Continuous (had been -ing)

verbs_tenses

B1

kill two birds with one stone

To accomplish two things with one action

B1

kill time

Do something while waiting.

A2

wait around

To stay in one place without doing anything productive while waiting for something or someone.

B1

Kill time.

Pass time with an activity.

A1

Kill two birds with one stone.

Achieve two goals

A1

To kill two birds with one stone.

Achieve two goals at once

A2