1. To creep, wind, or flow into; to enter gently, slowly, or imperceptibly, as into crevices.
  2. To ingratiate; to obtain access to or introduce something by subtle, cunning or artful means.
  3. To hint; to suggest tacitly while avoiding a direct statement.
    She insinuated that her friends had betrayed her.

The above text is a snippet from Wiktionary: insinuate
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