Synonym: earlier, formerly, in advance, previously, prior. Antonym: after, behind. Similar words: come before, long before, before long, be full of, be familiar with, care for, reform, die for. Meaning: [bɪfɔː] 
adv. 1. earlier in time; previously 2. at or in the front.
adv. 1. earlier in time; previously 2. at or in the front. 
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91, Beat up the eggs before you add the flour.
92, I'll have to gas up before we leave.
93, All surgical instruments must be sterilised before use.
94, It's most unlikely that she'll arrive before seven.
95, That model won't go into production before late 1990.
96, Think things through before you act.
97, I made a tactful retreat before they started arguing.
98, Ancient people like to have a declaration before war.
99, The athlete will have one final fling before retirement.
100, He brayed out his grievances before the judge.
101, The plot was discovered before it was carried out.
102, Cube the apples before putting them in the pan.
103, Look about before you cross the street.
104, He obliterated the blackboard before break.
105, She tarted up before she went out.
106, Tidy the room up before the guests arrive.
107, He rewarded the bearer before reading the note.
108, The guard left before his replacement came.
109, We freshened up before going to the party.
110, The people all bowed down before the Emperor.
111, A prosperity never seen before appeared in the countryside.
112, Clean down all the walls before repainting them.
113, I saw Simon shortly before his departure for Russia.
114, He inspected the car before he bought it. Sentencedict.com
115, Always chew food well before swallowing it.
116, The ball bounced twice before he could reach it.
117, Let's go right now before it gets too late.
118, He took a bath and shaved before dinner.
119, all things are difficult before they are easy.
120, A great gulf opened before us.
More similar words: come before, long before, before long, be full of, be familiar with, care for, reform, die for, come for, save for, take for, make for, come forth, settle for, more, core, struggle for, forest, score, compensate for, for ever, Korean, or else, any more, no more, in exchange for, forehead, explore, restore, all the more.