Definition of 'old man'

Noun

1. a man who is very old
      Synonyms: greybeard graybeard Methuselah
2. a familiar term of address for a man
      Synonyms: old boy
3. an informal term for your father
4. aromatic herb of temperate Eurasia and North Africa having a bitter taste used in making the liqueur absinthe
      Synonyms: common wormwood absinthe lad's love Artemisia absinthium
5. (slang) boss

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