3 adverb
before3 S1 W2
1 at an earlier time:
Haven't I met you before somewhere?
Never before had he seen so many people starving.
She looked just the same as before.

the day/week/month etc before

the previous day, week, month etc:
She was in Paris last week and in Rome the week before.
3 old use ahead of someone or something else:
The king's herald walked before.

ago, before, previously
Use ago to say how much time has passed from the time something happened to now, the time of speaking I saw her a few minutes ago. We went to Madrid two years ago.Use before to say how much time passed from the time something happened to a time in the past We went to the same hotel where we stayed two years before.Previously is used in the same way, but is more formal The meeting was a follow-up to one that had been held four days previously.GRAMMAR!! Do not use a preposition ('at', 'in', 'on' etc) before a phrase with ago They first met fifteen years ago (NOT at/in fifteen years ago).!! Do not use 'since' or 'before' with ago I came to the USA two months ago (NOT since/before two months ago).!! Use the past tense, not the present perfect, with ago I started (NOT I've started) a new job a few weeks ago.See also ago

in front, opposite, face
If something or someone is in front of a building, they are directly outside the front of it Meet me in front of the station.If something or someone is opposite a building, they are outside the front of it on the other side of a street, area of land etc the fields opposite the schoolUse the verb face to say that a building has something outside the front of it My apartment block faces (NOT is in front of) the sea. a house facing the square
in front of, before

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