to suggest that something is true or that you feel or think something, without saying so directly

to make it seem likely that something is true or exists

The survey implies (that) more people are moving house than was thought.

It was implied in the survey that…

Popularity does not necessarily imply merit.

The fact that she was here implies a degree of interest.

to make something necessary in order to be successful

The project implies an enormous investment in training.

Sustainable development implies a long-term perspective.

LEARNit Dictionary