Synonyms of solstice

1 Syllable
crest, hill, tip, crown, pitch, peak, height, brow, cusp, rise
2 Syllables
mountain, tallness, highness, summit, zenith, extent, apex, vertex, acme, tiptop, ceiling
3 Syllables
pinnacle, loftiness, stature, apogee
4 Syllables
elevation, prominence