yesterday
[noun]
Synonyms: past, foretime, lang syne, yesteryear, yore

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Antonyms: tomorrow

[TahlilGaran] English Synonym Dictionary ▲

I. yes‧ter‧day¹ S1 W1 /ˈjestədi, -deɪ $ -ər-/ adverb
[Language: Old English; Origin: giestran dæg, from giestran 'yesterday' + dæg 'day']
on or during the day before today ⇒ tomorrow:
What did you do yesterday?
yesterday morning/afternoon/evening
Anna left yesterday afternoon. ⇒ I wasn’t born yesterday at born²(5)

[TahlilGaran] Dictionary of Contemporary English ▲

II. yesterday² noun [uncountable]

1. the day before today ⇒ tomorrow:
yesterday’s meeting
They arrived the day before yesterday.

2. the recent past:
the great champions of yesterday

3. yesterday’s news information that is old and no longer interesting

[TahlilGaran] Dictionary of Contemporary English ▲

yesterday
ˈjestədɪ
See: born yesterday

[TahlilGaran] English Idioms Dictionary ▲