Adjective

(en adjective)

Of or relating to principles of right and wrong in behaviour, especially for teaching right behaviour.

* Nathaniel Hawthorne

She had wandered without rule or guidance in a moral wilderness.

Conforming to a standard of right behaviour; sanctioned by or operative on one's conscience or ethical judgment.

* Sir M. Hale

the wiser and more moral part of mankind

*

, title=(The Celebrity), chapter=1 , passage=The stories did not seem to me to touch life. They were plainly intended to have a bracing moral effect, and perhaps had this result for the people at whom they were aimed. They left me with the impression of a well-delivered stereopticon lecture, with characters about as life-like as the shadows on the screen, and whisking on and off, at the mercy of the operator.}}

Capable of right and wrong action.

Probable but not proved.

Positively affecting the mind, confidence, or will.

Adjective

(en adjective)

of, or relating to a mode or modus

(grammar) of, relating to, or describing the mood of a clause

(grammar) modal verb

*

Using the same type of distributional criterion, we could argue that only a Verb (in its base form) can occur in the position marked — in (23) below to complete the sentence:
(23)     They/it can —
[...]
Conversely, the only type of word which could be used to begin a three-word sentence such as (25) below:
(25)     — I be frank?
is a Modal : cf. [...]

(music) of, 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

(logic) of, or relating to the modality between propositions

(statistics) relating to the statistical mode.

(computing) Having separate modes in which user input has different effects.

(computer science) requiring immediate user interaction (often used as modal dialog'' or ''modal window )

(metaphysics) Relating to the form of a thing rather to any of its attributes