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AM abbreviation amplitude modulation.
Am symbol, chem americium.
am verb used with I: the 1st person singular of the present tense of be.
a.m., am, A.M. or AM abbreviation ante meridiem.
be verb (been, being; present tense am, are, is; past tense was, were) intrans 1 to exist or live I think, therefore I am. 2 to occur or take place Lunch is in an hour. 3 to occupy a position in space She is at home. 4 in past tense to go He's never been to Italy. 5 to remain or continue without change Let it be. 6 (as a copula) used to link a subject and what is said about it She is a doctor He is ill. 7 used with the infinitive form of a verb to express a possibility, command, intention, outcome, etc if it were to rain We are to come tomorrow It was not to be. auxiliary verb 1 used with a past participle to form a passive construction The film was shown last night. 2 used with a present participle to form the progressive tenses He was running. be someone to suit them That hat really isn't her. be that as it may although that may be true. the be-all and end-all the only important issue or overriding aim.
ETYMOLOGY: From Anglo-Saxon beon to live or exist, and Anglo-Saxon weran to be.
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