There are 2 main definitions of apex in English:

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apex1

Line breaks: apex
Pronunciation: /ˈeɪpɛks
 
/

noun (plural apexes or apices /ˈeɪpɪsiːz/)

1The top or highest part of something, especially one forming a point: the apex of the roof figurative the central bank is at the apex of the financial system
More example sentences
  • Crucks, great curving oak trunks arching from ground level to the apex of a building, were one of the classic ways in the Middle Ages of providing a basic framework for a building, and a means to support its roof.
  • The mountain range's east summit comes next and then the rocky perch that is the 3776 ft summit, the apex of the quartet of ridges.
  • The pitched roof of each shelter was 2.2 m above ground level at its apex and 1.5 m high along the sides and ends.
Synonyms
tip, peak, summit, pinnacle, top, highest point/part, crest, vertex
rare fastigium
1.1 Geometry The highest point in a plane or solid figure, relative to a base line or plane.
Example sentences
  • In contrast, Blake demonstrated that a triangle with a proximal apex and distal base is the most effective shape for rowing.
  • It has an uneven shape, being wider at the apex than at the base.
  • Slopes increased from the apex to the base, although the data were more scattered at the base.
1.2 Botany The growing point of a shoot.
Example sentences
  • Excision of the apex releases lateral shoot buds; these were removed and collected as one sample.
  • Shoot apices from three plants were dissected.
  • A shoot apex was considered dead if the terminal bud was absent or if it was dark-brown in colour, dehydrated or damaged.
2The highest point of achievement; a climax: the apex of his career was in 1966 when he hoisted aloft the World Cup for England
More example sentences
  • They were the apex of human technological achievement.
  • Masons viewed Solomon's temple as the apex of achievement and patterned their own Lodges after its design.
  • For a glorious 100-year period from the 16th century, Esfahan was the capital of Iran, a period when Persian art and architecture reached the apex of its achievement.
Synonyms
climax, culmination, culminating point, apotheosis;
peak, pinnacle, summit, zenith, acme, apogee, high point, highest point, height, crowning moment, high water mark
3 Motor Racing The point in turning a corner when the vehicle is closest to the edge of the track.
Example sentences
  • The tyre degradation is also quite severe, because the drivers are often braking under lateral acceleration so you need a well-balanced car that is going to hit the chosen apexes in the corners.
  • Most drivers maximize speed through track tactics, memorizing apexes, shifts and brake points.
  • With the aid of traction control, a driver can simply get to the apex of a corner and plant their right foot on the floor.

verb

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1 [no object] Reach a high point or climax: melodic lines build up to the chorus and it apexes at the solo
More example sentences
  • In Argentina, differentiation on the basis of race starts with a color continuum apexing at ‘White,’ while ‘Black’ constitutes the base of the social pyramid.
  • Montana law, which allowed miners to pursue veins of ore that ‘apexed’ on their claims, regardless of where they led, handed judges enormous power-and enormous opportunity for corruption.
  • The hours and hours and hours of travel finally apexed with a few more hours and hours of travel which led to a couple more hours and hours of travel until I finally arrived in Seattle, the home of ‘really cold rain.’
2 [with object] Motor Racing Turn (a corner) very close to the edge of the track: he understands when to apex a corner
More example sentences
  • Check for wannabes trying their luck down the inside and apex the slightly cambered Castrol Corner, a 90-degree right hander onto the 650m back straight.
  • The left hander is taken in 3rd gear at around 160 kph, and we will then be back on the power as soon as possible as we take 2, lifting only briefly to apex at around 220 kph.

Origin

early 17th century: from Latin, 'peak, tip'.

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There are 2 main definitions of apex in English:

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Apex2

Line breaks: Apex
Pronunciation: /ˈeɪpɛks
 
/

noun

[mass noun]
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: Apex fares
More example sentences
  • There will be no change on Apex fares for South Wales customers, although there will be a rise of 2.5 per cent elsewhere.
  • Off peak tickets, including Apex, Advance and SuperAdvance, are also going up by an average of three per cent.
  • Fares will remain roughly the same with an Apex return fare at £16 for advance bookings.

Origin

1970s: from Advance Purchase Excursion.

Definition of apex in:

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