History
History
Synonyms
UK
US
Meaning:
apex

the top or highest point

top, high point

crest

a tall growth of feathers on a bird's head

highest point

crown

an ornamental ring of gold, jewels etc worn on the head by a sovereign ruler

top; best

extremity

extreme point, end or limit

ultimate; limit

height

a measurement from bottom to top; the distance to the top of something, especially from sea-level or the ground

altitude, top part

peak

a (pointed) top of a mountain; a highest point in a record or figures

top of something

pinnacle

a tall, pointed part of a roof; a high, slender mountain peak

top, crest

skull

the bony framework of the head

brain

solstice

either time (summer solstice, the longest day, about 21 June; winter solstice, the shortest day, about 21 December in the northern parts of the world) when the sun is farthest North or South of the equator

altitude, top part

summit

the top of a mountain; the highest point; a meeting between heads of state

top, crowning point

tip

a pointed or thin end of something; a small piece put at the end of something; a public place where rubbish is (to be) put; a gift of money to a waiter, porter etc; a small piece of advice; to touch or hit (something) slightly

very top

zenith

the part of the sky directly overhead; the highest point (of one's fame, fortunes etc)

top

VERTEX as in Wiktionary
VERTEX as in Wikipedia