1.a comparatively long time;
this won't take long
2.primarily temporal sense; being or indicating a relatively great or greater than average duration or passage of time or a duration as specified;
a long life
3.primarily spatial sense; of relatively great or greater than average spatial extension or extension as specified;
a long road
4.of relatively great height;
a race of long gaunt men- Sherwood Anderson
5.holding securities or commodities in expectation of a rise in prices;
is long on coffee
6.of speech sounds (especially vowels) of relatively long duration (as e.g. the English vowel sounds in `bate', `beat', `bite', `boat', `boot')
7.used of syllables that are unaccented or of relatively long duration
8.involving substantial risk;
long odds
9.(of memory) having greater than average range;
a long memory especially for insults
10.planning prudently for the future;
large goals that required farsighted policies
11. having or being more than normal or necessary:"long on brains";
in long supply
12.for an extended time or at a distant time;
a promotion long overdue
13.for an extended distance
1.desire strongly or persistently