This word is acceptable for play in the US & UK dictionaries that are being used in the following games:

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n. One who imbibes, who drinks, especially alcoholic beverages.

n. One who, or that which, imbibes.

n. One who or that which imbibes.

n. a person who drinks alcoholic beverages (especially to excess)

"An afternoon imbiber of cold gin, I can smell her next sneeze, going off in three point two seconds."

consumer   

sot    drunken reveler    social drinker    drunk    drunken reveller    wassailer    guzzler    bar fly    rummy    tippler   

gentleman-farmer    sex-education    bandying    spendthrift    impregnability    confidence    imbibing    jollification    jeering    tonalities