fill in the blank

Etymology
As a noun, a clipping of fill-in-the-blank question, problem, &c.

Noun

 * 1) A language exercise in which one or more words are replaced with a blank line and the reader is tasked with supplying a valid replacement.
 * The test consisted of fill-in-the-blank sentences.

Translations

 * Finnish: täydennys-
 * German: Lücken-
 * Korean: 빈칸채우기

Verb

 * 1) To complete a single fill in the blank question.
 * 2)  To complete an interruption, ambiguity, or vagueness in understanding, perception, or context.