hum

As nouns the difference between onomatopoeia and hum

is that onomatopoeia is (uncountable) the property of a word of sounding like what it represents while hum is twilight, dusk.

As a noun hum

is twilight, dusk.

As an adjective false is

(label) one of two states of a boolean variable; logic.

As a noun hum

is twilight, dusk.

As an adjective undefined is

lacking a definition or value.

As nouns the difference between humanitarian and hum

is that humanitarian is a person with such concerns; a philanthropist or do-gooder while hum is twilight, dusk.

As an adjective humanitarian

is concerned with people's welfare, and the alleviation of suffering; humane or compassionate.

As nouns the difference between hum and buzzing

is that hum is twilight, dusk while buzzing is the action of the verb to buzz .

As a verb buzzing is

.

As nouns the difference between hum and snore

is that hum is twilight, dusk while snore is thin cord or string.

As nouns the difference between hum and whirring

is that hum is twilight, dusk while whirring is a whirr, the sounds of a whirr.

As a verb whirring is

.

As nouns the difference between hum and tick

is that hum is twilight, dusk while tick is a tiny woodland arachnid of the suborder ixodida or tick can be a relatively quiet but sharp sound generally made repeatedly by moving machinery or tick can be (uncountable) ticking or tick can be (uk|colloquial) credit, trust.

As a verb tick is

to make a clicking noise similar to the movement of the hands in an analog clock or tick can be to go on trust, or credit.

As a noun hum

is twilight, dusk.

As an adjective noice is

(dialect|nonstandard) nice.

As nouns the difference between growl and hum

is that growl is the deep, threatening sound made in the throat by an animal; a grumbling sound while hum is twilight, dusk.

As a verb growl

is to utter a deep guttural sound, as an angry animal; to give forth an angry, grumbling sound.