Placeholder
Also called: Hint text
Hint text shown inside an empty input field that disappears when the user starts typing.
Definition
Placeholders give an example of what to enter, such as "name@example.com". They should not replace a real label, because the hint vanishes as soon as the user types and is often low contrast. Testers check it is not mistaken for a pre-filled value.
In practice
A form that uses only placeholders as labels leaves users unsure what each field was for once they've typed in it.
Learn it in context
Lessons that use this term.