Long Vowel Rule (1): When a word has two vowel, usually the first vowel says its name and the second vowel is silent.
gill noun (FISH) âº [ 1  C usually plural ] the organ through which fish and other water creatures breathe. âº 2  us â [ C ] a measure of liquid that is equal to 0.142 litres or a quarter of a pint. âº 3  the organ through which fish and other water creatures breathe.
Definition of cap for Students. 1  1 : a head covering and especially one having a visor and no brim. 2  2 : something that serves as a cover or protection for something a bottle cap. 3  3 : a part that forms the top of something a mushroom cap.  4 : an upper limit a cap on spending.