really

adverb

1. in reality; actually: to see things as they really are.
2. genuinely or truly: a really honest man.
3. indeed: Really, this is too much.

interjection

4. (used to express surprise, exasperation, etc.)

verb (used with or without object), re-al·lied, re-al·ly·ing.

1. to ally again or anew.

adverb

1. in reality; in actuality; assuredlyit’s really quite harmless
2. truly; genuinelyreally beautiful

interjection

3. an exclamation of dismay, disapproval, doubt, surprise, etc
4. not really? an exclamation of surprise or polite doubt

adv.

c.1400, originally in reference to the presence of Christ in the Eucharist, from real (adj.) + -ly (2). Sense of “actually” is from early 15c. Purely emphatic use dates from c.1600; interrogative use (oh, really?) is first recorded 1815.

v.

“to form an alliance again,” c.1600, from re- + ally (v.). Related: Re-allied.