smidgen vs tittle

smidgen and tittle both are nouns.

Word	Noun	Adjective	Verb	Adverb
smidgen	Yes	No	No	No
tittle	Yes	No	No	No

As nouns, smidgen and tittle are synonyms defined as:

Other synonyms of smidgen include iota, scintilla, shred, smidge, smidgeon, smidgin, whit.

smidgen (noun)	tittle (noun)
a tiny or scarcely detectable amount	a tiny or scarcely detectable amount