Breadcrumb Home > Thesaurus > G Synonyms of gca Find synonyms for: Noun 1. ground-controlled approach, GCA, aircraft landing, airplane landing usage: aircraft landing in bad weather in which the pilot is talked down by ground control using precision approach radar WordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved.Definition and meaning of gca (Dictionary) TrendingHere are the facts and trivia that people are buzzing about. Chinese New Year History, Meaning, and Celebrations Current Events This Week: February 2024 Valentine's Day Valentine's Day History Mardi Gras 30 "Charlie and the Chocolate Factory" Quotes ✖ Related Content Daily Word Quiz: porcine Analogy of the Day: Today’s Analogy Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language