The term "alchy" is slang for an alcoholic or someone who drinks excessively. There are several other synonyms for this term, including "boozer," "lush," "drunkard," "sot," and "wino." Each of these synonyms carries a slightly different connotation and may be used in different contexts. "Boozer" is a colloquial term for someone who drinks heavily and regularly, while "lush" suggests someone who has a taste for high-end alcohol. "Drunkard" is a more formal term that refers to someone who is habitually intoxicated, while "sot" implies a person who is physically or mentally deteriorated from alcohol abuse. "Wino" is a somewhat derogatory term for a homeless person who drinks cheap wine.