meridian

Meanings

• the highest level or degree attainable; the highest stage of development
• a town in eastern Mississippi
• an imaginary great circle on the surface of the earth passing through the north and south poles at right angles to the equator
  • "all points on the same meridian have the same longitude"
• of or happening at noon
  • "meridian hour"
• being at the best stage of development; - Robert Browning

Synonyms

acme, elevation, height, line of longitude, peak, pinnacle, prime, summit, superlative, tiptop, top