(idiomatic, chiefly in the negative, with can't/cannot) To understand even minimally. / To determine to be good or bad.

Neat and tidy; possessing order. / Methodical or systematic. / Peaceful; well-behaved. / Being on duty; keeping order; conveying orders.

A hospital attendant given a variety of non-medical duties. / (military) A soldier who carries out minor tasks for a superior officer.

(now rare) According to good order or practice; appropriately, in a well-behaved or orderly (adjective) way. / (obsolete) In order; in a particular order or succession; with a suitable arrangement.

The fragrant white flower of the orange tree, Citrus sinensis.

(cricket) The batsmen, constituting the tail, who bat last - roughly in positions 8 to 11.

(cricket, baseball, softball) The sequence in which a side's batsmen go in to bat.

A potent herbicide and defoliant used by US forces in the Vietnam War.

Pertaining to the faith, practices, etc. of the Eastern Orthodox Church.

(quantum mechanics, chemistry) A mathematical function that describes the wave-like behavior of either one electron or a pair of electrons in an atom. This function can be used to calculate the probability of finding any electron of an atom in any specific region around the atom's nucleus.