What is the meaning of Assure?

To make sure and secure; ensure.

To give (someone) confidence in the trustworthiness of (something).

To guarantee, promise (to do something).

To reassure.

inflection of assurer:

  1. first/third-person singular present indicative/subjunctive
  2. second-person singular imperative

first/third-person singular present indicative/subjunctive

second-person singular imperative

Source: wiktionary.org