A particular location which is used as an endpoint when measuring distances or charting maps. / A unique, intellectual premise used to relate other to ideas.

(idiomatic, Britain) On a property ladder, owning property.

(inorganic chemistry) A name for hydrochloric acid, not now generally used in chemistry but still used in some commercial and domestic labelling.

(archaic) ethanol.

(biology) a male copulatory organ

US standard spelling of centre of lift.

(idiomatic) The time at (or very close to) the start of the next hour of time.

(aeronautics) That point on an aircraft where all the various lifting forces act. If the centre or lift is not coincident with the centre of gravity on the fore/aft axis, the plane will pitch, if not coincident on the lateral axis, it will roll.

(aviation) An instrument installed in an aircraft that indicates the rate at which the aircraft is gaining or losing altitude.

hourly, beginning at the start of each hour.