PEAK

The most extreme possible amount or value

Example: "Voltage peak"

• extremum  19

• limit  7
• limitation  12

• lower limit
• minimum  13
• maximum  20
• upper limit

The period of greatest prosperity or productivity

• bloom  9
• blossom  11
• efflorescence  23
• flower  12
• flush  11
• heyday  16
• prime  9

• period  9
• period of time
• time period

• golden age

The highest level or degree attainable; the highest stage of development

Example: "His landscapes were deemed the acme of beauty"

• acme  8
• elevation  12
• height  13
• meridian  11
• pinnacle  12
• summit  10
• superlative  16
• tiptop  10
• top  5

The top or extreme point of something (usually a mountain or hill)

Example: "The view from the peak was magnificent"

• crest  7
• crown  10
• summit  10
• tip  5
• top  5

• place  9
• spot  6
• topographic point

• brow  9
• hilltop  12
• pinnacle  12
• mountain peak

A v shape

Example: "The cannibal's teeth were filed to sharp points"

• point  7
• tip  5

• convex shape
• convexity  24

• widow's peak
• cusp  8
• head  8

The highest point (of something)

Example: "At the peak of the pyramid"

• acme  8
• apex  13
• vertex  16

• extreme  16
• extreme point
• extremum  19

• crown  10
• roof peak

A brim that projects to the front to shade the eyes

Example: "He pulled down the bill of his cap and trudged ahead"

• bill  6
• eyeshade  15
• visor  8
• vizor  17