Definitions

1. adjective

lacking the power of speech or unable to speak

“The fire left the child dumb and unable to speak for hours.”

2. adjective

having or showing a lack of sense or intelligence

“He was called dumb for not understanding the joke.”

3. verb

to make (someone) unable to speak or to cause (someone) to lose the power of speech

“The loud noise dumbfounded the musicians during the performance.”

4. noun

a person who does not speak, especially because they are unable to speak

“The deaf and dumb students were learning sign language.”

5. noun

a person who is considered to be foolish or lacking in intelligence

“He was called a dumbbell for not understanding the simple concept.”