i Register
In some senses, tiff is marked as informal, archaic, obsolete, slang, British. Watch for register when choosing this word.
noun
A (generally small) argument or disagreement; a petty quarrel, a spat.
My Lord and I have had another little—Tiff, ſhall I call it? It came not up to a quarrel. Married people vvould have enough to do, if they vvere to trouble their friends every time they miſunderſtood one another.
There's Tom, now, since this tiff with Mrs. Cat, the scoundrel plays the Grand Turk here!
A brief outburst or period of bad temper; a snit; also (rare) any brief outburst (for example, of laughter).
[A]s if / Returning homevvards in a furious Tiff; / Your Hoſt declares, he's ſorry at his Heart, / And humbly acts the penitential Part.
Wilhelmina […] answered his romances and him with tiffs of laughter, in a prettily fleeting manner.
verb
To be involved in a (generally small) argument or disagreement; to squabble.
I very much indeed approve / Of maidens moderating love / Until they've twenty pounds; / […] / Until the twenty pounds were safe, / She tiff'd at Tim, she ran from Ralph, / Squire nodded … deuce a curtsy!
Poor Newton! he little knew to what he owed that glance. The fact is, the Captain was late, and Miss Bowers tiffed.
noun
Alternative letter-case form of TIFF (acronym of tagged image file format).