- iotaThe ninth letter of the Greek alphabet (Ι, ι).
- jotThe smallest letter or stroke of any writing; an iota.
- iotationA specific occurrence of palatalization that occurred in the Proto-Slavic language, in which a consonant combined with the palatal approximant /j/ to form a palatalized consonant.
- jot and tittleOften preceded by every: a smallest detail; (uncountable) the smallest details collectively.