Dictionary

1peak

noun \ˈpēk\

: the pointed top of a mountain

: a tall mountain with a pointed or narrow top

: something that looks like a pointed top of a mountain

Full Definition of PEAK

1
:  a pointed or projecting part of a garment; especially :  the visor of a cap or hat
2
3
:  a sharp or pointed end
4
a (1) :  the top of a hill or mountain ending in a point (2) :  a prominent mountain usually having a well-defined summit
b :  something resembling a mountain peak
5
a :  the upper aftermost corner of a fore-and-aft sail
b :  the narrow part of a ship's bow or stern or the part of the hold in it
6
a :  the highest level or greatest degree
b :  a high point in a course of development especially as represented on a graph

Examples of PEAK

  1. a line of rocky peaks
  2. the peak of the roof
  3. The recipe says to beat the cream until it forms soft peaks.
  4. At her peak she was writing a new novel every year.
  5. Violence reached a peak just before the election.
  6. The graph shows that murders in the city declined from a peak of 173 in 2004.

Origin of PEAK

perhaps alteration of pike
First Known Use: 1530

Synonym Discussion of PEAK

summit, peak, pinnacle, climax, apex, acme, culmination mean the highest point attained or attainable. summit implies the topmost level attainable <at the summit of the Victorian social scene>. peak suggests the highest among other high points <an artist working at the peak of her powers>. pinnacle suggests a dizzying and often insecure height <the pinnacle of worldly success>. climax implies the highest point in an ascending series <the war was the climax to a series of hostile actions>. apex implies the point where all ascending lines converge <the apex of Dutch culture>. acme implies a level of quality representing the perfection of a thing <a statue that was once deemed the acme of beauty>. culmination suggests the outcome of a growth or development representing an attained objective <the culmination of years of effort>.

Other Geology Terms

anthracite, boulder, cwm, erratic, igneous, intrusive, mesa, sedimentary, silt, swale

2peak

verb

Definition of PEAK

intransitive verb
:  to reach a maximum (as of capacity, value, or activity) —often used with out
transitive verb
:  to cause to come to a peak, point, or maximum

First Known Use of PEAK

1577

3peak

adjective

: at the highest point or level

: filled with the most activity

Full Definition of PEAK

:  being at or reaching the maximum <peak levels> <peak output>; also :  of, relating to, or being a period of maximum intensity or activity <peak business hours>

Examples of PEAK

  1. The factory has been running at peak capacity for the past year.
  2. the peak season for fishing

First Known Use of PEAK

1903

4peak

verb

Definition of PEAK

intransitive verb
1
:  to grow thin or sickly
2
:  to dwindle away

Origin of PEAK

origin unknown
First Known Use: 1605

5peak

verb

Definition of PEAK

transitive verb
1
:  to set (as a gaff) nearer the perpendicular
2
:  to hold (oars) with blades well raised

Origin of PEAK

from apeak held vertically
First Known Use: 1626
PEAK Defined for Kids

peak

noun \ˈpēk\

Definition of PEAK for Kids

1
:  a prominent mountain <We saw a snowy peak rising from the plain.>
2
:  the pointed top of a hill or mountain <I climbed all the way to the peak.>
3
:  a sharp or pointed end <The roof rises to a peak.>
4
:  the highest point of development <He is at the peak of his career.>
July 01, 2015
precarious Hear it
not certain, secure, or steady
Take a 3-minute break and test your skills!
How to use a word that (literally) drives some people nuts.
Test your vocab with our fun, fast game
Ailurophobia, and 9 other unusual fears