by: meaning, pronunciation and examples

/baɪ/·BY

By (preposition) means used to show who or what does something.

What does “by” mean?

  1. 1

    prepositionused to show who or what does something

    This song was written by my brother.
  2. 2

    prepositionnear or beside

    She sat by the window.
  3. 3

    prepositionnot later than

    Please finish the report by Friday.

By at a glance

Part of speech
preposition
CEFR level
A1 (beginner)
Pronunciation
/baɪ/ · BY

How to use “by” correctly

Use “by” for transport without “the”: “by bus”, “by train”, but “on foot”. “By Friday” means no later than Friday; “until Friday” means continuing up to Friday.

Common phrases with “by”

  • by car
  • by the way
  • by yourself
  • by mistake

“by” is on these word lists

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