Cill or CILL may refer to:
* Cill or sill, in water navigation, a horizontal ledge in a
lock
*
Continental Indoor Lacrosse League, a senior men's box lacrosse league in the United States
See also
*
Sill (disambiguation)
Sill may refer to:
* Sill (dock), a weir at the low water mark retaining water within a dock
* Sill (geology), a subhorizontal sheet intrusion of molten or solidified magma
* Sill (geostatistics)
* Sill (river), a river in Austria
* Sill plate ...
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