1. (

• decrease ,
• lessening ,
• drop-off

) a change downward; "there was a decrease in his temperature as the fever subsided"; "there was a sharp drop-off in sales" ;

2. (

• decrease ,
• decrement

) a process of becoming smaller or shorter ;

3. (

• decrease ,
• decrement

) the amount by which something decreases ;

4. (

• decrease ,
• diminution ,
• reduction ,
• step-down

) the act of decreasing or reducing something ;

1. (

• decrease ,
• diminish ,
• lessen ,
• fall ,

) decrease in size, extent, or range; "The amount of homework decreased towards the end of the semester"; "The cabin pressure fell dramatically"; "her weight fell to under a hundred pounds"; "his voice fell to a whisper" ;

2. (

• decrease ,
• lessen ,
• minify

) make smaller; "He decreased his staff" ;