The meaning of FULL is containing as much or as many as is possible or normal —often used with of. How to use full in a sentence. Synonym Discussion of Full. Full definition: completely filled; containing all that can be held; filled to utmost capacity.. See examples of FULL used in a sentence. FULL definition: 1. (of a container or a space) holding or containing as much as possible or a lot: 2. containing a…. Learn more. Master the word "FULL" in English: definitions, translations, synonyms, pronunciations, examples, and grammar insights - all in one complete resource. to make full, as by gathering or pleating. to bring (the cloth) on one side of a seam to a little greater fullness than on the other by gathering or tucking very slightly. v.i. Astronomy (of the moon) to become full. n. the highest or fullest state, condition, or degree: The moon is at the full. Idioms in full: to or for the full or required Define full. full synonyms, full pronunciation, full translation, English dictionary definition of full. adj. full·er , full·est 1. Containing all that is normal or possible: a full pail. 2. Complete in every particular: a full account. 3. Baseball a. Find 1171 different ways to say FULL, along with antonyms, related words, and example sentences at Thesaurus.com. Aug 28, 2025 · full (comparative fuller or more full, superlative fullest or most full) Containing the maximum possible amount that can fit in the space available. Synonyms for FULL: filled, bursting, packed, loaded, crammed, crowded, jammed, stuffed; Antonyms of FULL: empty, devoid, short, bare, blank, vacant, void, insufficient Something that's full holds as much as it can. If your glass is full of root beer, it's up the brim — no more root beer will fit inside it.