A word that often evokes an emotional response, positive or negative, in the target audience, leading to a desired outcome.

Any word that has a magical effect when uttered. / (in teaching polite behaviour to children) One of the words please, thank you, or hello.

plural of word processor

A mathematics question that states verbally what is usually expressed with symbols or diagrams.

plural of word problem

(idiomatic) Indicates that given plans or actions can proceed.

A term that has a positive connotation.

(US, education, set phrase) A word, especially among several others, for which the spelling is supposed to be memorized and practiced before an upcoming quiz or test in which all of such words are covered.

(linguistics) A linguistic form class whose members are words.

(computing) A word or phrase that activates a dormant device when spoken by the user.