1. rest assured - Verb
2. rest assured - Phrase
rest assured (third-person singular simple present rests assured, present participle resting assured, simple past and past participle rested assured)
(intransitive, idiomatic) Be sure; not need to worry; trust.
You may rest assured that our best efforts will be put forth to give you complete satisfaction.
If the Philippines secure their independence after heroic and stubborn conflicts, they can rest assured that neither England, nor Germany, nor France, and still less Holland, will dare to take up what Spain has been unable to hold. José Rizal
Reader, if you don't know what a database is, rest assured that an explanation of the concept would in no way increase your enjoyment in reading this account. If you do know, you will thank me for sparing you the details. Neal Stephenson
Rest assured that whatever station of life we are placed, princely or lowly, it contains the lessons and experiences necessary at the moment for our evolution, and gives us the best advantage for the development of ourselves. Edward Bach
I think that the American people should rest assured and be assured that every federal agency that has a role to play in this terrorism is working overtime now, taking every necessary action to protect our great citizens. Hugh Shelton
Rest assured that there is nothing which wounds the heart of a noble man more deeply than the thought his honour is assailed. Molière
There are and will be those who think I have gone overboard. Let them rest assured that this assessment is correct, probably beyond their wildest imagination, and that I will continue to do so. Mary Daly