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1.
Replaceonym. A word within a list of possible spelling corrections presented in a dialog box over a misspelled word after running a spell-check engine.

A list of replaceonyms usually pops up within a dialog box when a computer screen cursor moves over the identified misspelling within a spell-checked document.
In the case of the misspelled word "feelin", the spell-check engine suggests the following replaceonyms in a pop up dialog box:
feeling, feel in, feline, and felon.

In the case of the misspelled word "scool", the spell-check engine suggests the following replaceonyms in a pop up dialog box:
school, scoop, scoot, scold, spool, stool, scowl, cool
by Doctor Fruitbomb July 03, 2009