A bribe to maintain secrecy (to prevent bad publicity or to prevent the discovery of a crime).

(grammar) a verb whose primary function is to express grammatical mood

The full moon or the lunar month around midsummer.

(physics) Random motion of particles suspended in a fluid, arising from those particles being struck by individual molecules of the fluid. / (by extension) A state of chaos or disarray.

a month of approximately 29.53 days, measured from a lunar phase until the return of that same phase. The long-term average duration is 29.530 588 days (29 d 12 h 44 min 2.8 s), or about 29 ½ days.

Of, or relating to a mode or modus. / (grammar) Of, relating to, or describing the mood of a clause.

(logic) A modal proposition. / (linguistics) A modal form, notably a modal auxiliary. / (grammar) A modal verb.

(astronomy) A lunar phase either side of the full moon when the moon's disc as seen from the Earth is larger than a semicircle.

(physics) The process of applying a signal to a carrier. / The variation and regulation of a population, physiological response, etc. / (music) A change in key.

A method of sending information by modifying (modulating) the difference in phase (fraction of a wave length) between a signal and a reference.