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Definitions

bottom

[bot-uhm] / ˈbɒt əm /
ADJECTIVE
lowest; fundamental
Synonyms
STRONG
base basement basic ground last primary radical underlying
WEAK
basal foundational lowermost lowest meat-and-potatoes nethermost rock-bottom undermost
Antonyms
STRONG
secondary
WEAK
highest top
NOUN
foundation
Synonyms
STRONGEST
basement bed floor ground seat underside
STRONG
base basis bedrock depths foot footing groundwork nadir pedestal pediment rest substratum substructure support underbelly
WEAK
deepest part lowest part nether portion terra firma underneath
Antonyms
STRONGEST
ceiling
STRONG
top
WEAK
exteriority outside
NOUN
base, core
Synonyms
STRONGEST
ground heart
STRONG
basis cause essence essentiality mainspring marrow origin pith principle quintessence root soul source stuff substance
WEAK
bottom line virtuality
Antonyms
STRONG
consequence effect end outcome outgrowth result
NOUN
rear end
Synonyms
STRONGEST
rear seat tail
STRONG
backside behind breech bum butt buttocks derriere fanny fundament posterior rump tush

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Jian Zhao, the study's first author, built the device using tungsten for the top electrode, hafnium oxide ceramic in the middle, and graphene for the bottom layer.

From Science Daily • Apr. 7, 2026

At least so far, AI seems to be boosting, not hurting, H&R Block’s bottom line.

From Barron's • Apr. 6, 2026

Wolves that eat livestock take a bite out of the bottom line for ranchers.

From Los Angeles Times • Apr. 6, 2026

Although the bottom might not be in just yet, it appears the latest stock-market pullback has likely entered its “final innings,” said Mike Wilson, an equity strategist at Morgan Stanley, in a research note Monday.

From MarketWatch • Apr. 6, 2026

I’ve been through it all, even the secret compartment at the bottom.

From "Code Name Kingfisher" by Liz Kessler

From Roget's 21st Century Thesaurus, Third Edition Copyright © 2013 by the Philip Lief Group.