Words that indicate quantity — all, every, most, many, some, few, none, no — which the LSAT uses with exacting precision. Misunderstanding a single quantifier can cause a test-taker to select a wrong answer confidently. Each quantifier has a precise meaning ("some" = at least one, possibly all; "most" = more than half; "all" = without exception) and supports specific inference rules that are tested repeatedly on Inference and Must Be True questions.