/ Thesaurus / A Synonyms of altostratus cloud Find synonyms for: Noun1. altostratus, altostratus cloud, stratus, stratus cloudusage: a stratus cloud at an intermediate altitude of 2 or 3 milesWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: labyrinth Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language