Crossword puzzle clue "run smoothly as an engine"

Here are the possible solutions for run smoothly as an engine clue

Answer
Clue
Relevancy
hum
Clue
Run smoothly, as an engine
Definition
to make a sound like bees
purr
Clue
Run smoothly, as an engine
Sound from a smoothly running engine or a happy kitten
Definition
to utter a low, vibrant sound, also PUR
purred
Clue
Ran smoothly, as an engine
Definition
PURR, to utter a low, vibrant sound, also PUR
purring
Clue
Operating smoothly, as an engine
Definition
making a sound like a cat
purrs
Clue
Runs smoothly, as an engine
Definition
PURR, to utter a low, vibrant sound, also PUR
debug
Clue
Make run smoothly again
Definition
to remove the errors from a computer program
flow
Clue
Run smoothly
Definition
to move steadily and smoothly along

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