Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “hum”

See all translations

hum

verb
 
 
/hʌm/ ( present participle humming, past tense and past participle hummed)
SING [I, T] to sing without opening your mouth: She hummed to herself as she walked to school. I've forgotten the tune. Can you hum it to me?Singing in general
MAKE SOUND [I] to make a continuous, low sound: The computers were humming in the background.Sounds made by objects, movement or impact
be humming If a place is humming, it is busy and full of activity.Busy and activeHurrying and doing things quickly
hum noun [C] a low, continuous sound: the hum of traffic Sounds made by objects, movement or impact
(Definition of hum from the Cambridge Learners Dictionary © Cambridge University Press)
Add Cambridge dictionaries to your browser to your website

Definitions of “hum” in other dictionaries

Word of the Day

thug

a man who acts violently, especially to commit a crime

Word of the Day

The way we move (Verbs for walking and running)

by Kate Woodford,
March 25, 2015
​​​ This week we’re looking at interesting ways to describe the way that people move. Most of the verbs that we’ll be considering describe how fast or slow people move. Others describe the attitude or state of mind of the person walking or running. Some describe both. Starting with verbs for walking slowly,

Read More 

crossfit noun

March 23, 2015
high-intensity strength training Two women in strappy dresses discussed how much weight they could snatch

Read More