under

Anything that's under is beneath something else. Most of us wear socks under our shoes and stand under an umbrella in the pouring rain.

If you're under water, you are below its surface, and if you're in the room directly under your brother's, you'll hear the rhythmic thudding of his stereo directly above your head. This adverb has a variety of meanings, including "lesser in rank," like a corporal who's under a general, and "controlled by," as when you fall under the spell of a magician. You can also be "under the weather," or sick.

Primary Meanings of under

1.
advadj
below some quantity or limit
located below or beneath something else
2.
adv
down to defeat, death, or ruin
3.
adv
into unconsciousness
Full Definitions of under
1

adv below some quantity or limit

“fifty dollars or under

adv below the horizon

“the sun went under

adv down below

“get under quickly!”

adv further down

“see under for further discussion”
Synonyms:
below

adv through a range downward

“children six and under will be admitted free”

adv in or into a state of subordination or subjugation

“we must keep our disappointment under

adj located below or beneath something else

“the under parts of a machine”
Synonyms:
nether
low
literal meanings; being at or having a relatively small elevation or upward extension

adj lower in rank, power, or authority

“an under secretary”
Synonyms:
low-level, subordinate
lower in rank or importance
2

adv down to defeat, death, or ruin

“their competitors went under
3

adv into unconsciousness

“this will put the patient under

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