Sure
Part of speech: adjective
Definition: Physically secure and certain, non-failing, reliable. Certain in one's knowledge or belief.
Part of speech: interjection
Definition: Yes, of course.
Example sentence: What sunshine is to flowers, smiles are to humanity. These are but trifles, to be sure; but scattered along life's pathway, the good they do is inconceivable.
Steady
Part of speech: adjective
Definition: smooth and not bumpy or with obstructionsregular and evenslow
Part of speech: verb
Definition: To stabilize something; to prevent from shaking.
Example sentence: God does not die on the day when we cease to believe in a personal deity, but we die on the day when our lives cease to be illumined by the steady radiance, renewed daily, of a wonder, the source of which is beyond all reason.