(a) The long dimension of something, length; also, size, magnitude; in ~, in length, as to length; also, lengthwise; of ~, in length; also, of (a specified) length; on ~, in length; upon ~ of, alongside; taken the ~, to traverse the length (of a path); (b) a lengthy period of time; at (the) ~, in the long run; also, finally, after all; er ~, soon; on ~, at length, to a great length; upon ~, at length; also, indefinitely; umbe ~, after a time, eventually; the short and ~, the whole, all there is to it; (c) mus. a rhythmic value, a long note equalling two or three breves; in metrical verse: a long foot; in Latin phonology: a long vowel; [see also long adj. 2c. (d)]; (d) in place names [cp. long adj. 4. (a); see Smith PNElem. 2.15].