Synoposal
Two (or more) synonyms are clued (overloaded) by a single cueword. Then, these words are transposed as a group to form a longer word or phrase. Example:
The synonyms are “lied” and “song”, either of which can replace the cueword “BOTH”. The two words together can be transposed to form “sidelong”. Other examples include can, fire; fancier; or grand, thou; on draught.
In an antoposal, the overloaded words are antonyms; there must be exactly two of them. The verse must be written so that either fits.
Solution: narrow, wide; Rear Window.
In a synobank, the synonyms, as a group, form the base of a letter bank. Note that the synonyms cannot have any letters in common. Example: den, lair; adrenaline. As in a synoposal, the synonyms are overloaded.
An antobank is like a synobank except that the shorter words are antonyms. Example: in, out; intuition; or win, lose, Willie Nelson.
These types were introduced by Newrow in 2023, although the “Willie Nelson” antobank was published by Wrybosh in 2003 as a letter bank variant.