ETYM Latin.
The highest point of a triangle, cone, or pyramid—that is, the vertex (corner) opposite a given base.

ETYM Old Fren. creste, French cręte, Latin crista.
1. The top line of a hill, mountain, or wave.
2. A showy growth of e.g. feathers or skin on the head of a bird or other animal.
3. (Heraldry) In medieval times, used to decorate a helmet.

ETYM Latin cuspis, -idis, point, pointed end.
1. A thin triangular flap of a heart valve; SYN. leaflet.
2. Point formed by two intersecting arcs (as from the intrados of a Gothic arch).
3. Small elevation on the grinding surface of a tooth.
4. Prominence; crown of tooth; sharp point; Astrology, cross-over point between two signs.
5. Point where two branches of a curve meet and the tangents to each branch coincide. + prikaži više

ETYM Old Eng. senyth, Old Fren. cenith, French zénith, Spanish zenit, cenit, abbrev. from Arabic samt-urras way of the head, vertical place; samt way, path + al the + ras head. Related to Azimuth.
1. The point above the observer that is directly opposite the nadir on the imaginary sphere against which celestial bodies appear to be projected.
2. (Figurative) The greatest height; the climax.
Uppermost point of the celestial horizon, immediately above the observer; the nadir is below, diametrically opposite. See celestial sphere. + prikaži više