(auxiliary) Indicating duty or obligation. / (auxiliary) Indicating advisability or prudence. / (auxiliary) Indicating desirability. / (auxiliary) Indicating likelihood or probability.

plural of oughtness

(chiefly philosophy) In ethics, the quality which makes an action dutiful or morally obligatory. / (rare) The state or characteristic of something's being as it ought to be; rightness.

Alternative form of aughts (“first decade of a century”)

plural of ought

(obsolete) simple past tense of owe

(auxiliary) Indicating duty or obligation. / (auxiliary) Indicating advisability or prudence. / (auxiliary) Indicating desirability. / (auxiliary) Indicating likelihood or probability.

Alternative spelling of aught; anything

Alternative spelling of aught; at all, to any degree.

A statement of what ought to be the case as contrasted with what is the case.