noun
plural -toms
[count] :the lowest part, point, or level of something - usually singular
[count] :the part of something that is below or under the other parts - usually singular
[count] :the lowest point or surface inside something :the part of something hollow that is furthest from the top - usually singular
[singular] chiefly Brit :the part of something that is furthest away
[count] :the part of the body on which you sit :buttocks
[singular] :a position of little power in a company or organization
[singular] :a low rank or position
[noncount] :the worst position, level, or condition
[singular] :the surface that is under a body of water
b bottoms [plural] :the flat, low land along a river or stream :bottomland
[count] :a piece of clothing that is worn on the lower part of the body
see color picture
[singular] :the second half of an inning in baseball
[noncount] chiefly Brit :the lowest gear of a car
at bottom
chiefly Brit :in reality :really
at the bottom of the pile
be/lie at the bottom of
chiefly Brit :to be the source or originator of (something)
bottoms up
informal - used as a toast or to tell people to finish their drinks
from the bottom of your heart
from top to bottom
get to the bottom of
to find out the true reason for or cause of (something)
the bottom drop/fall out
If the bottom drops/falls out of something, it suddenly fails or becomes unable to continue in a normal and effective way.
the bottom of the barrel
the lowest possible condition, level, etc.
adjective
always used before a noun
in the lowest position
living at the lowest level of an ocean or lake
bet your bottom dollar
verb
-toms; -tomed; -toming
bottom out
[phrasal verb]
to reach a lowest or worst point usually before beginning to rise or improve