helpertext

noun
UK /ˈhelpə tekst/
US /ˈhelpər tekst/

Small words that help you understand something.

The helpertext under the button told me what to do.


OTHER MEANINGS

2. Words shown near a form field to explain what to type.

The helpertext said to enter your birthday like this: 01/01/2020.

3. A short note that gives extra information about a picture or chart.

The helpertext below the chart explained what the colors meant.

4. Words on a screen that guide you when you feel stuck.

When I forgot my password, the helpertext showed me how to make a new one.