Is this your crossword clue?
"cap" is also used as a crossword clue. If that's what you saw, the answer is often ceiling (7 letters).
Definitions
restrict the number or amount of
Word origin
Inherited from Middle English cappe, from Old English cæppe, from Proto-West Germanic *kappā (“covering, hood, mantle”), from Late Latin cappa, itself from Latin caput. Doublet of cape, chape, and cope.
Used in a sentence
“The children were all wearing caps to protect them from the sun.”
“That elf-maiden smote with her hand so white, “Sorrow and sickness on thee alight” That elf-maiden smote with her cap so small, “No more shall priest's benison on thee fall!””
“He took the cap off the bottle and splashed himself with some cologne.”
Source: Wiktionary, CC BY-SA 4.0
Used as a crossword answer18 curated clues
01“Bottle closure”3 letters
02“Bottle cover”3 letters
03“Bottle lid”3 letters
04“Bottle top”3 letters
05“Bottle topper”3 letters
06“Brimmed head cover”3 letters
07“Cover for a marker”3 letters
08“Hat with a brim”3 letters
09“Headwear with a bill”3 letters
10“Lens cover”3 letters
11“Lid on a pen”3 letters
12“Limit on spending”3 letters
13“Limit or lid”3 letters
14“Maximum limit”3 letters
15“Pen cover”3 letters
16“Top for a bottle”3 letters
17“Baseball headwear”3 letters
18“Lid or limit”3 letters
Not quite right?
"Search similar patterns."
C__