verb

assure

Translation

to assure, to guarantee, to ensure, to convince

I assure you that I will be there.

This victory assured their place in the final.

((sb.)) ((that...)) to tell someone confidently that something is true. I can assure you that you will not be disappointed.

((sb.)) ((of sth.)) to make someone certain about something. He assured her of his support.

((sth.)) to make something certain to happen. The win assured their promotion.

Synonyms: guarantee, promise, convince; Antonyms: doubt, deny

From Old French 'assurer' (to make sure), from Latin 'ad-' (to) + 'securus' (secure).

To make someone feel 'sure' about something. It's about removing doubt.