noun / adjective / verb
bottom
BAH-tuhm/ˈbɑːtəm/
The lowest part or underlying surface of something.
The lowest surface forms the bottom of the glass jar.

Etymology
Botm covered both the ground or foundation and the lowest part of something. These connected meanings place the bottom beneath the rest, whether it is a surface, a base, or a position.
In context
Eventually, the weight struck the bottom at 4,475 fathoms, nearly five miles beneath the ocean's surface.
More examples
- She placed the heaviest books on the bottom shelf.
- The toddler landed on his bottom after slipping.
- The investigator got to the bottom of the missing funds.
- The boat bottomed on the shallow sandbar.
Forms
bottom · bottoms · bottomed · bottoming
bottomless adjective — Seeming to have no lowest limit.
Similar words
- base
- Often the part on which something rests or is built.
- underside
- The downward-facing surface, even when not the lowest part.