under

US /ˈʌn.dɚ/
UK /ˈʌn.dɚ/
"under" picture
1.

extending directly below

:
The cat is hiding under the bed.
She put the book under her arm.
2.

less than (a specified amount, rate, or number)

:
Children under 12 must be accompanied by an adult.
The temperature dropped under zero.
3.

controlled or governed by

:
The country is under new management.
The city is under siege.
1.

in or to a lower position or state

:
Push the lever under.
The sun went under the horizon.
1.

lower in position; subordinate

:
He felt under and out of place.
The team was under and struggling.