Rarely vs. Really

Rarelyadverb

Not occurring at a regular interval; seldom; not often.

‘We rarely go to the theatre.’; ‘Rarely do you ever find an eagle this far up the river.’;

Reallyadverb

(literal) In a way or manner that is real, not unreal.

Rarelyadverb

Unusually well; excellently.

Reallyadverb

(modal) Actually; in fact; in reality.

‘"He really is a true friend." / "Really? What makes you so sure?"’;

Rarelyadverb

To a rare degree; very.

Reallyadverb

Very (modifying an adjective); very much (modifying a verb).

‘But ma, I really, really want to go to the show!’;

Rarelyadverb

In a rare manner or degree; seldom; not often; as, things rarely seen.

Reallyinterjection

Indicating surprise at, or requesting confirmation of, some new information; to express skepticism.

‘A: He won the Nobel Prize yesterday.’; ‘B: Really?’;

Rarelyadverb

Finely; excellently; with rare skill. See 3d Rare, 2.

‘The person who played so rarely on the flageolet.’; ‘The rest of the apartments are rarely gilded.’;

Reallyinterjection

Indicating that what was just said was obvious and unnecessary; contrived incredulity

‘A: I've just been reading Shakespeare - he's one of the best authors like, ever!’; ‘B: Really.’;

Rarelyadverb

not often;

‘we rarely met’;

Reallyinterjection

Indicating affirmation, agreement.

‘A: That girl talks about herself way too much.’; ‘B: Really. She's a nightmare.’;

Rarelyadverb

not often; seldom

‘I rarely drive above 50 mph’;

Reallyinterjection

Indicating displeasure at another person's behaviour or statement.

‘Well, really! How rude.’;

Rarelyadverb

remarkably well

‘you can write rarely now, after all your schooling’;

Reallyadverb

Royally.

Rarelyadverb

to an unusual degree; exceptionally

‘the rarely fine Sheraton bookcase’;

Reallyadverb

In a real manner; with or in reality; actually; in truth.

‘Whose anger is really but a short fit of madness.’; ‘Why, really, sixty-five is somewhat old.’;

Reallyadverb

in accordance with truth or fact or reality;

‘she was now truly American’; ‘a genuinely open society’; ‘they don't really listen to us’;

Reallyadverb

in actual fact;

‘to be nominally but not actually independent’; ‘no one actually saw the shark’; ‘large meteorites actually come from the asteroid belt’;

Reallyadverb

in fact (used as intensifiers or sentence modifiers);

‘in truth, moral decay hastened the decline of the Roman Empire’; ‘really, you shouldn't have done it’; ‘a truly awful book’;

Reallyadverb

used as intensifiers; `real' is sometimes used informally for `really'; `rattling' is informal;

‘she was very gifted’; ‘he played very well’; ‘a really enjoyable evening’; ‘I'm real sorry about it’; ‘a rattling good yarn’;