Procedure words are words or phrases limited to radio telephone procedure used to facilitate communication by conveying information in a condensed standard verbal format. Wikipedia

Structured vocabulary for voice communication Wikidata

Lexical item of relative meaning (i.e. whose interpretation depends essentially on the context), used in place of any word or phrase of absolute meaning (whose meaning does not depend essentially on the context) of one or several grammatical categories if the word, phrase or notion referred to have been previously mentioned, will be mentioned later, are indicated by the context, have to be guessed, kept very general or mysterious. OmegaWiki

A short word or phrase used in radiotelephony etc. to convey information in a condensed standard form. Wiktionary