📒 used for showing how or in what way something is done
- The house is heated by gas.
- May I pay by credit card?
- I will contact you by letter.
📒 near somebody/something; at the side of somebody/something; next to somebody/something
- a house by the river
- The telephone is by the window.
- Come and sit by me.
📒 used, usually after a passive verb, to show who or what does, creates or causes something
- He was knocked down by a bus.
- a play by Ibsen
- Who's that book by?
📒 not later than the time mentioned; before
- Can you finish the work by five o'clock?
- I'll have it done by tomorrow.
- By this time next week we'll be in New York.
📒 used before particular nouns without the, to say that something happens as a result of something
- They met by chance.
- I did it by mistake.
- The coroner's verdict was ‘death by misadventure’.
📒 used to show the degree or amount of something
- The bullet missed him by two inches.
- House prices went up by 10%.
- It would be better by far (= much better) to…
📒 during something; in a particular situation
- to travel by day/night
- We had to work by candlelight.
📒 from what something shows or says; according to something
- By my watch it is two o'clock.
- I could tell by the look on her face that something terrible had happened.
- By law, you are a child until you are 18.
📒 past somebody/something
- He walked by me without speaking.
📒 used to show the part of somebody/something that somebody touches, holds, etc.
- I took him by the hand.
- She seized her by the hair.
- Pick it up by the handle!
📒 used with the to show the period or quantity used for buying, selling or measuring something
- We rented the car by the day.
- They're paid by the hour.
- We only sell it by the metre.
📒 used to state the rate at which something happens
- They're improving day by day.
- We'll do it bit by bit.
- It was getting worse by the minute (= very fast).
📒 used to show the measurements of something
- The room measures fifteen feet by twenty feet.
📒 used when multiplying or dividing
- 6 multiplied by 2 equals 12.
- 6 divided by 2 equals 3.
📒 used for giving more information about where somebody comes from, what somebody does, etc.
- He's German by birth.
- They're both doctors by profession.
📒 used when swearing to mean ‘in the name of’
📒 used to introduce a comment or question that is not directly related to what you have been talking about