1. (n.) A body of individuals; an assemblage.

2. (n.) A miner's underground working time or shift.

3. (n.) A Hebrew dry measure; a cor or homer.

4. (n.) The heart or inner part of a thing, as of a column, wall, rope, of a boil, etc.; especially, the central part of fruit, containing the kernels or seeds; as, the core of an apple or quince.

5. (n.) The center or inner part, as of an open space; as, the core of a square.

6. (n.) The most important part of a thing; the essence; as, the core of a subject.

7. (n.) The portion of a mold which shapes the interior of a cylinder, tube, or other hollow casting, or which makes a hole in or through a casting; a part of the mold, made separate from and inserted in it, for shaping some part of the casting, the form of which is not determined by that of the pattern.

8. (n.) A disorder of sheep occasioned by worms in the liver.

9. (n.) The bony process which forms the central axis of the horns in many animals.

10. (v. t.) To take out the core or inward parts of; as, to core an apple.

11. (v. t.) To form by means of a core, as a hole in a casting.

Bowery Chinatown East End East Side Little Hungary Little Italy West End West Side amidships amount average axiom axis barrio base basis beginning bench mark black ghetto blighted area body bosom bulk burden business district cardinal point center center of action center of gravity central central city centroid centrum chief thing city center climax commencement consequence cornerstone corpus crisis critical point crux dead center deepest recesses diameter diaphragm distillate distillation downtown elixir epicenter equator equatorial equidistant essence essential essential matter fabric flower focus foundation fundamental ghetto gist gravamen great point greenbelt halfway heart heart of hearts high point hub hypostasis import importance important thing inner inner city inner essence inner landscape inner life inner man inner nature inner recess inner self inside insides interior interior man intermediary intermediate intern internal intrados inward issue kernel keystone landmark main point main thing marrow mass material material point matter mean meat medial median mediocre mediterranean medium medulla mesial metacenter mezzo mid middle middlemost middling midland midmost midpoint midriff midships midst midtown midway milestone nave navel nub nuclear nucleus nuts and bolts omphalos origin outskirts penetralia pit pith pivot postulate principle purport quick quid quiddity quintessence real issue recap recapitulation recesses red-light district residential district resume root run-down neighborhood run-through rundown salient point sap secret place secret places seed shopping center significance sine qua non skid road skid row slum slums soul spirit staple start storm center stuff substance substantive point suburbia suburbs sum sum and substance summary summation tenderloin tenement district the bottom line the nitty-gritty the point thick thick of things thrust turning point umbilicus upshot uptown urban blight vital center vitals waist waistline zone