Definition of bottom noun in Oxford Advanced Learner's Dictionary. Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more.

Bottom definition: the lowest or deepest part of anything, as distinguished from the top.. See examples of BOTTOM used in a sentence.

The bottom of something is its underside, or lowest point. You might practice swimming by diving to the bottom of a swimming pool to retrieve pennies.

Define bottom. bottom synonyms, bottom pronunciation, bottom translation, English dictionary definition of bottom. n. 1. The deepest or lowest part: the bottom of a well; the bottom of the …

BOTTOM definition: 1. the lowest part of something: 2. the lower part of a piece of clothing that consists of two…. Learn more.

The bottom of an object is the flat surface at its lowest point. You can also refer to the inside or outside of this surface as the bottom.

Nov 9, 2025 · bottom (countable and uncountable, plural bottoms) The lowest part of anything. synonym, antonym hyponym quotations Hyponym: rock bottom Synonym: base Antonym: top