Meaning of PEAK in English

PEAK

I. ˈpēk noun

Etymology: perhaps alteration of pike

Date: 1530

1. : a pointed or projecting part of a garment ; especially : the visor of a cap or hat

2. : promontory

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

7. : widow's peak

Synonyms: see summit

II. verb

Date: 1577

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

III. adjective

Date: 1903

: 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

IV. intransitive verb

Etymology: origin unknown

Date: 1605

1. : to grow thin or sickly

2. : to dwindle away

V. transitive verb

Etymology: from apeak held vertically

Date: 1626

1. : to set (as a gaff) nearer the perpendicular

2. : to hold (oars) with blades well raised

Merriam-Webster's Collegiate English vocabulary.      Энциклопедический словарь английского языка Merriam Webster.