What does it mean for a martini to be dry?

Answer 1

A dry martini is a cocktail made with gin and dry vermouth. Martini Dry is a brand of dry vermouth, which is an ingredient in a dry martini. Martini Dry is also served on its own, often poured over ice cubes and garnished with a lemon twist or lemon wedge. Americans ordering martinis in Europe are often surprised when they get a glass of Martini Dry instead of a dry martini cocktail.

Answer 2

dry means without vermouth ( a wine based liquor ) gin ( or vodka ) and vermouth are usually the only two ingredients in a martini

Answer 3

it's made with dry vermouth ... & vodka or sometimes gin'