Bottom is a common English word with several meanings. It can refer to the lowestat the minimum height or position; below everything else part of something, the undersidethe lower surface of an object, especially the part hidden from view of an object, the part of the body you sit on, or other more specializedused in particular fields or situations, not in general language uses in shipping, baseball, and geography.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.

Pronunciation

AI-generated pronunciation audio (OpenAI).

Accent: General American English

IPA: /ˈbɑːtəm/

Easy pronunciation: BOT-əm (approximate spelling).

Stress: Stress the first syllable.

Noun meaning the lowest part of something.

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.

Bottom Meaning

the lowest point or part of something

Part of speech: noun

Definition: the lowest part of anything

Example: We sat at the bottom of the hill.

Synonyms for this meaning:

• base — A general substitute when bottom means the lowest part of something.
• foot — Works in some contexts, especially for the lowest part of a hill, page, or structure.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.

Other Meanings of Bottom

Meaning 2

the underside of something

Part of speech: noun

Definition: the lower side of anything

Example: Flip the box over and check the bottom.

Synonyms for this meaning:

• underside — Direct synonym for the lower side of an object.
• undersurface — Works in formal or technical contexts.

Meaning 3

your buttocks

Part of speech: noun

Definition: the fleshy part of the human body that you sit on

Example: He landed on his bottom after slipping on the ice.

Synonyms for this meaning:

• backside — Common neutral substitute in everyday English.
• behind — Common informal synonym.
• buttocks — Neutral and accurate anatomical term.
• rear — Common polite synonym.
• bum — Common informal synonym in British English.
• seat — Used in some informal contexts, especially in British English.

Meaning 4

to give something a base or seat

Part of speech: verb

Definition: provide with a bottom or a seat

Example: The workshop will bottom the chairs before delivery.

Meaning 5

to figure out completely

Part of speech: verb

Definition: come to understand

Example: I still can't bottom what he's trying to say.

Synonyms for this meaning:

• fathom — A real substitute when the meaning is 'understand.'
• penetrate — Works in more formal or literary use.

Meaning 6

at the lowest level or position

Part of speech: adjective

Definition: situated at the bottom or lowest position

Example: Put the bottom drawer back in place.

Meaning 7

the second half of a baseball inning

Part of speech: noun

Definition: the second half of an inning; while the home team is at bat

Example: The home team scored three runs in the bottom of the fifth.

Meaning 8

a cargo vessel

Part of speech: noun

Definition: a cargo ship

Example: They shipped the goods on a foreign bottom.

Synonyms for this meaning:

• freighter — Direct substitute for a cargo ship.
• merchant ship — Works as a general synonym.
• merchantman — More old-fashioned or formal.

Meaning 9

the ground under a lake, river, or sea

Part of speech: noun

Definition: a depression forming the ground under a body of water

Example: The diver could see the sandy bottom below.

Synonyms for this meaning:

• bed — Common substitute in this sense, as in river bed or sea bed.

Meaning 10

low fertile land near a river

Part of speech: noun

Definition: low-lying alluvial land near a river

Example: The farm sits on rich river bottom.

Synonyms for this meaning:

• bottomland — Direct synonym in this geographic sense.

Meaning 11

to hit the ground below the water

Part of speech: verb

Definition: strike the ground, as with a ship's bottom

Example: The boat bottomed on a sandbar.

Reviewed with OpenAI Decisions. Assessment: inaccurate — correction needed. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.

Bottom Synonyms

Similar Meaning

• base
• foot

lower side of anything

• underside
• undersurface

fleshy part of the human body that you sit on

• backside
• behind
• buttocks
• rear
• bum
• seat

come to understand

• fathom
• penetrate

cargo ship

• freighter
• merchant ship
• merchantman

depression forming the ground under a body of water

• bed

low-lying alluvial land near a river

• bottomland

Reviewed with OpenAI Decisions. Assessment: uncertain — manual review needed. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.

Common Mistakes

• Using bottom to mean 'top' or 'side'.
• Mixing the body-part sense with the 'lowest part' sense.
• Treating baseball 'bottom' as if it meant the physical lower part of something.
• Using shipping or geography meanings in everyday sentences where bottom simply means the lowest part.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.

Frequently Asked Questions

What is the most common meaning of bottom?

In everyday English, bottom most often means the lowest part of something.

Is bottom a noun only?

No. Bottom can be a noun, adjective, and verb, depending on the context.

What are the best synonyms for bottom?

For the most common meaning, base and foot are strong substitutes in the right context. Other senses have different synonyms, such as underside, backside, and freighter.

Does bottom always mean the lowest part?

No. It can also refer to the underside of something, the body part you sit on, a cargo ship, or specialized uses in baseball and geography.

Reviewed with OpenAI Decisions. Assessment: accurate. Checked: 2026-11-01. AI assessment; not a guarantee of accuracy.