deep

relatively deep or strong; affecting one deeply

• “a deep breath”
• “a deep sigh”
• “deep concentration”
• “deep emotion”
• “a deep trance”
• “in a deep sleep”

marked by depth of thinking

• “deep thoughts”
• “a deep allegory”

having great spatial extension or penetration downward or inward from an outer surface or backward or laterally or outward from a center; sometimes used in combination

• “a deep well”
• “a deep dive”
• “deep water”
• “a deep casserole”
• “a deep gash”
• “deep massage”
• “deep pressure receptors in muscles”
• “deep shelves”
• “a deep closet”
• “surrounded by a deep yard”
• “hit the ball to deep center field”
• “in deep space”
• “waist-deep”

very distant in time or space

• “deep in the past”
• “deep in enemy territory”
• “deep in the woods”
• “a deep space probe”

extreme

• “in deep trouble”
• “deep happiness”

having or denoting a low vocal or instrumental range

• “a deep voice”
• “a bass voice is lower than a baritone voice”
• “a bass clarinet”

strong; intense

• “deep purple”
• “a rich red”

relatively thick from top to bottom

• “deep carpets”
• “deep snow”

extending relatively far inward

• “a deep border”

(of darkness) very intense

• “thick night”
• “thick darkness”
• “a face in deep shadow”
• “deep night”

large in quantity or size

• “deep cuts in the budget”

with head or back bent low

• “a deep bow”

of an obscure nature

• “the new insurance policy is written without cryptic or mysterious terms”
• “a deep dark secret”
• “the inscrutable workings of Providence”
• “in its mysterious past it encompasses all the dim origins of life” Rachel Carson
• “rituals totally mystifying to visitors from other lands”

difficult to penetrate; incomprehensible to one of ordinary understanding or knowledge

• “the professor”
• “;”
• “;”

exhibiting great cunning usually with secrecy

• “deep political machinations”
• “a deep plot”

to a great depth

• “dived deeply”
• “dug deep”

to an advanced time

• “deep into the night”
• “talked late into the evening”

to far into space

• “penetrated deep into enemy territory”
• “went deep into the woods”

the central and most intense or profound part

• “in the deep of night”
• “in the deep of winter”

a long steep-sided depression in the ocean floor

literary term for an ocean

• “denizens of the deep”