under

Definitions

1. Beneath; below; at or to the bottom of, or the area covered or surmounted by
2. It intensifies the qualities, usually negative, of the substantive or adjective to the that modifies.
3. The amount by which an actual total is less than the expected or required amount.
4. Below the surface of
5. Low, under.
6. Something having a particular property that is low or too low.
   informal
7. Having gotten free of worries or difficulties: Credit counseling helped us get out from under.
8. From one side of to the other, passing beneath
9. Use to stop the horses.
10. A bet that a particular sporting statistic, such as points scored in a game, will be below a certain stated value.
11. a prefixal use of under, as to indicate place or situation below or beneath (underbrush; undertow); lower in grade or dignity (undersheriff; understudy); of lesser degree, extent, or amount (undersized); or insufficiency (underfeed).
    underbrush; undertow
12. Less than
13. in or to a lower position, rank etc. The swimmer surfaced and went under again; children aged seven and under. onder, laer تَحْت الشَّيء в, на abaixo dolů, méně unter under κάτω, σε χαμηλότερη θέση abajo; por debajo alla, vähem kui به پائین alle sous, au-dessous מִתַחַת לְ-, פָּחוֹת מְ- निम्न स्थान manje, niže alá (pl. alámerül); ... és annál fiatalabb di bawahnya í kaf/undir ákveðnum aldri sotto 下に (위치, 지위 등) 아래에 žemyn; mažiau septiņus gadus veci un jaunāki bērni ke bawah onder, naar beneden...
    etc
14. Subject to
15. In a lower position or place than: a rug under a chair.
16. Beneath the surface of: under the ground; swam under water.
17. Beneath the assumed surface or guise of: traveled under a false name.
18. Less than; smaller than: The jar's capacity is under three quarts.
19. Less than the required amount or degree of: under voting age.
20. Inferior to in status or rank: nine officers under me at headquarters.
21. Subject to the authority, rule, or control of: under a dictatorship.

Equivalents

Examples

“[…] standard cash count⟳ forms used to record⟳ the count⟳ and any overs or unders.”

“I went fishing but caught nothing but unders.”

“Usually I am at least ten over on that course, but I have⟳ shot a couple of unders.”

CEFR level