n. 1
The opposite of something.
Division is the reverse of multiplication.
n. 2
The act of going backwards; a reversal.
v. 1
To turn something around so that it faces the opposite direction or runs in the opposite sequence.
to reverse a portion of video footage
adj. 1
Opposite, contrary; going in the opposite direction.
The mirror showed us a reverse view of the scene.

Related words

Word family: reverse-engineer reversgram reversible reversal
Phrases: reverse dowry reverse discrimination reverse gear reverse panda reverse ratio spread reverse transcriptase bootlegger reverse reverse anorexia nervosa
Is a kind of: gear

Forms

Plural: reverses → setbacks, blows, disasters, catastrophes…
Past participle: reversed
e.g. reversed → overturned, repealed, undone, rescinded…

Reverse or Set Aside?

An appellate court may reverse or set aside the decision of an inferior court.

J. C. Fernald, English Synonyms and Antonyms (1914)

Use in printed books, per decade from 1850 to 2019.

4 letters: back¹, turn¹, blow¹, lift¹, rear¹, undo²
5 letters: cross¹, heads¹, verso, annul²
6 letters: change¹, defeat², repeal², revoke², vacate², mishap², invert²
7 letters: abolish³, setback², inverse², rescind²
8 letters: opposite³, disaster³, contrary³, backward², reversal³, converse², override³, calamity⁴, overturn³, overrule³, rearward, abrogate³
9 letters: overthrow³, inversion³, reversion³, transpose²
10 letters: misfortune³, turnaround³, antithesis⁴
11 letters: catastrophe⁴, countermand, vicissitude⁴
12 letters: misadventure⁴

The small number after each word is its number of syllables (undo² = 2 syllables).