[ˈeɪpɛks], (Noun)

Definitions:
- the top or highest part of something, especially one forming a point
(e.g: the apex of the roof)

- the highest point of achievement; a climax
(e.g: the apex of his career was in 1966 when he hoisted aloft the World Cup for England)

- the point in turning a corner when the vehicle is closest to the edge of the track


Phrases:

Origin:
late 16th century (denoting part of a headdress worn by priests in ancient Rome): from Latin, ‘peak, tip’

[ˈeɪpɛks], (Verb)

Definitions:
- reach a high point or climax
(e.g: melodic lines build up to the chorus and it apexes at the solo)

- turn (a corner) very close to the edge of the track
(e.g: he understands when to apex a corner)


Phrases:

Origin:
late 16th century (denoting part of a headdress worn by priests in ancient Rome): from Latin, ‘peak, tip’

[ˈeɪpɛks], (Noun)

Definitions:
- a system of reduced fares for scheduled airline flights and railway journeys which must be booked and paid for before a certain period in advance of departure
(e.g: Apex fares)


Phrases:

Origin:
1970s: from Advance Purchase Excursion