Definitions
1.nounA modal proposition.
2.nounA modal form, notably a modal auxiliary.
3.noun(grammar) A modal verb.
4.nounA modal window, one that cannot be closed until a decision is made.
5.adjectiveOf, or relating to a mode or modus
6.adjective(grammar) of, relating to, or describing the mood of a clause
7.adjectiveOf, relating to, or composed in the musical modi by which an octave is divided, associated with emotional moods in Ancient — and in medieval ecclesiastical music
8.adjectiveOf, or relating to the modality between propositions
9.adjectiveRelating to the statistical mode.
10.adjectiveHaving separate modes in which user input has different effects.
11.adjectiveRequiring immediate user interaction and thus presented so that it cannot be closed or interacted behind until a decision is made."a modal dialog; a modal window"
12.adjectiveRelating to the form of a thing rather to any of its attributes