Available Definitions:
1) superl. - Drawn out in a line, or in the direction of length; protracted; extended; as, a long line; -- opposed to short, and distinguished from broad or wide.
2) superl. - Drawn out or extended in time; continued through a considerable tine, or to a great length; as, a long series of events; a long debate; a long drama; a long history; a long book.
3) superl. - Slow in passing; causing weariness by length or duration; lingering; as, long hours of watching.
4) superl. - Occurring or coming after an extended interval; distant in time; far away.
5) superl. - Extended to any specified measure; of a specified length; as, a span long; a yard long; a mile long, that is, extended to the measure of a mile, etc.
6) superl. - Far-reaching; extensive.
7) superl. - Prolonged, or relatively more prolonged, in utterance; -- said of vowels and syllables. See Short , a., 13, and Guide to Pronunciation, // 22, 30.
8) n. - A note formerly used in music, one half the length of a large, twice that of a breve.
9) n. - A long sound, syllable, or vowel.
10) n. - The longest dimension; the greatest extent; -- in the phrase, the long and the short of it, that is, the sum and substance of it.
11) adv. - To a great extent in apace; as, a long drawn out line.
12) adv. - To a great extent in time; during a long time.
13) adv. - At a point of duration far distant, either prior or posterior; as, not long before; not long after; long before the foundation of Rome; long after the Conquest.
14) adv. - Through the whole extent or duration.
15) adv. - Through an extent of time, more or less; -- only in question; as, how long will you be gone?
16) prep. - By means of; by the fault of; because of.
17) a. - To feel a strong or morbid desire or craving; to wish for something with eagerness; -- followed by an infinitive, or by after or for.
18) a. - To belong; -- used with to, unto, or for.