1 A2 neutral
To hum a tune in accompaniment to music that is playing.
"She hummed along to the song on the radio as she drove to work."
hum along
A2 neutral intransitive
To hum quietly in accompaniment to music that is playing, or to describe something progressing smoothly.
In plain English
Make a soft 'mmm' sound along with music, OR for something to move or work well.
What does "hum along" mean?
2 meanings, ordered from most common to least. Color-coded by CEFR level.
2 B1 idiomatic neutral
For a process, machine, or situation to run smoothly and efficiently.
"The factory was humming along nicely until the power cut hit."
Literal vs figurative
Words literally mean
To hum (produce a continuous musical sound) while moving or accompanying — fairly transparent.
Actually means
Make a soft 'mmm' sound along with music, OR for something to move or work well.
Usage tip
Two main uses: (1) musical — to hum in time with a song or piece of music; (2) figurative — for a process or situation to proceed smoothly and efficiently. Sense 2 is more common in British English.
Words that pair with "hum along"
Natural word combinations native speakers use most often.
music tune song radio work economy
How to conjugate "hum along"
The five tense forms you'll use most often.
Base
hum along
I/you/we/they
3rd person
hums along
he/she/it
Past simple
humed along
yesterday
Past participle
humed along
have + pp
-ing form
huming along
continuous
Hear "hum along" in the wild
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