What is the crossword answer for the clue: Engine noise

HUM - a 3 letter word may be the answer you are looking for!

CHUG - a 4 letter word may be the answer you are looking for!

PING - a 4 letter word may be the answer you are looking for!

KNOCK - a 5 letter word may be the answer you are looking for!

VROOM - a 5 letter word may be the answer you are looking for!

PURR - a 4 letter word may be the answer you are looking for!

Engine noise

3 Character Answers:

HUM

4 Character Answers:

CHUG

PING

PURR

5 Character Answers:

KNOCK

VROOM