Meridian (suomeksi)

meridiaani (s: imaginary great circle on the Earth's surface / either half of that circle / great circle passing through the poles of a celestial sphere / math: similar line on any surface of revolution / acupunction: pathway along which acupoints are distributed)
pituuspiiri (s: imaginary great circle on the Earth's surface / either half of that circle)
longitudi (s)
kanava (s: acupunction: pathway along which acupoints are distributed)
korkein aste (s: highest point, as of success, prosperity, etc.)