step-by-step increase

noun phrase
UK /ˌstep baɪ ˈstep ˈɪŋkriːs/
US /ˌstep baɪ ˈstep ˈɪnkriːs/

A step-by-step increase means getting bigger little by little, one small step at a time.

The teacher saw a step-by-step increase in the student's reading speed each week.


OTHER MEANINGS

2. A planned series of small raises made in order, one after another.

The company announced a step-by-step increase in wages over three years.

3. A rise that happens in clear stages rather than all at once.

The thermometer showed a step-by-step increase as the sun came up.

4. A way of making something larger by adding a little more each time.

The recipe calls for a step-by-step increase in the amount of flour.