plural
peaks
plural
peaks
Britannica Dictionary definition of PEAK
[count]
1
a
:
the pointed top of a mountain
b
:
a tall mountain with a pointed or narrow top
—
see color picture on this page
c
:
something that looks like a pointed top of a mountain
2
:
the highest level or degree of excellence, quantity, activity, etc.
-
His cooking is the peak of perfection. [=is excellent]
-
a singer at the peak [=height] of her popularity
-
The team was at its peak [=played best] in the 1980s.
-
At her peak she was writing a new novel every year.
-
Violence reached a peak just before the election.
-
The graph shows that murders in the city declined from a peak of 173 in 2004.
-
There are peaks and valleys [=very high and very low levels] in electricity usage during the summer.
3
chiefly British
:
the front part of a cap or hat that shades the eyes
:
visor
2
peak
/ˈpiːk/
adjective
Britannica Dictionary definition of PEAK
always used before a noun
1
:
at the highest point or level
-
He is in peak [=top, excellent] physical condition.
-
peak [=best possible] engine performance
-
The factory has been running at peak capacity for the past year.
2
:
filled with the most activity
-
Phone calls cost more during peak calling hours. [=the time period when most calls are made]
-
the peak season for fishing
-
peak [=prime] television viewing time
—
opposite off-peak
3
peak
/ˈpiːk/
verb
peaks;
peaked;
peaking
peaks;
peaked;
peaking
Britannica Dictionary definition of PEAK
[no object]
:
to reach the highest level
-
Electricity usage peaks during the summer.
-
The singer's popularity peaked years ago. [=he is not as popular now]
-
The stock price peaked several months ago at 30 dollars per share.