To imply is to say something 'without saying'. - Ex. She said he was doing fine and then said, "...and you?" with a raised eyebrow. She implied that she thought something was the matter. Imply does not need a preposition (to, at), but other words that mean the same thing often do. - Ex. She did not say it, but hinted at it (she implied it)

Your question implies you don't have a dictionary.

Another word for imply = insinuate It is used the same way as imply.