prefix
Prefix used in compounds related to alcohol or sake, such as 酒屋 (sakaya, liquor store) or 酒好き (sakezuki, lover of alcohol). Not used as a standalone word.
「酒」は「酒屋」や「酒蔵」のように、酒に関係する言葉の前につく接頭語です。
酒 is a prefix attached to words related to alcohol, as in 酒屋 (liquor store) or 酒蔵 (sake brewery).