old man Meaning, Definition & Usage

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

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