Definitions of that
The word "that" uses 4 letters: ahtt.
pron., a., conj., & - As a demonstrative pronoun (pl. Those), that usually points out, or refers to, a person or thing previously mentioned, or supposed to be understood. That, as a demonstrative, may precede the noun to which it refers; as, that which he has said is true; those in the basket are good apples. 2
pron., a., conj., & - As an adjective, that has the same demonstrative force as the pronoun, but is followed by a noun. 2
Words formed by adding one letter before or after that (in bold), or to ahtt in any order:
e - theta