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key

key

∞ 2.0
Very important for something to work or succeed
  • adjective
  • /ki/
: clave
  • Transfer of knowledge and skills is a key element of high school education.
  • play a key role
  • a key role
  • key words

I think those are kind of key rules.

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Examples

  • And especially with long wearing foundation, it is key that you move fast.

  • Finally, awareness of the problem should be a key component in a campaign to prevent these deaths.

    Academic text (2011)
  • I think those are kind of key rules.

  • And those are really key critical points as well.

  • Now, what would you say are the key signs?

  • I think nuclear power is one of the key sustainable options.

  • But we agree that is a key and immediate problem.

  • So being vulnerable is key in that process.

  • Language is absolutely a key part of my skill set.

  • These strategies are key to achieving sustainable development.

Synonyms

important
vskey
∞ 1.0

A person or thing that matters a lot

is more than significance, denoting absolute or foundational necessity
major
vskey
∞ 1.0

Very serious or important

is essential in meaning, not merely large or broadly significant
critical
vskey
800 4.0

Very important at a dangerous or decisive moment

is important overall, not only at risky or crisis points
primary
vskey
691 2.5

Being most important or basic

covers essential status generally rather than strict first-in-order ranking
essential
vskey
502 1.9

Needed for something to work or succeed

is about crucial importance overall rather than only necessity for existence
central
vskey
493 2.1

Very important and needed for something to work

is about crucial importance without implying physical location
fundamental
vskey
475 3.5

Very important and necessary for something to work

focuses on crucial importance rather than only being an underlying part
crucial
vskey
437 3.6

Very important for the success or result of something

is about essential importance generally, not only outcome deciding moments
vital
vskey
405 3.5

Necessary for life or for something to succeed

is about core importance generally rather than only survival matters
pivotal
vskey
69 4.9

Very important for the success of something

is crucial too but applies more broadly beyond one decisive point
primal
vskey
49 6.2

Most basic and needed for life

expresses essential importance without the primitive or original nuance
paramount
vskey
45 6.7

More important than anything else

speaks to essential importance without implying highest rank above all
41 4.0

Very necessary for a decision or success

is important too but may not be regarded as always absolute
of the essence
vskey
  • Formal
21 5.3

Very important and needed right away

is equally important but can apply more broadly than a single necessity
cardinal
vskey
  • Formal
21 5.0

Very important and basic to how something works

is essential in general rather than specifically a guiding principle

Antonyms

102 4.1

Not important or too small to matter

50 1.9

Not worth attention or notice

Idioms

351 2.8

The main thing that makes something succeed or work

18 8.8

Put someone in prison for life with no hope of release

Kept in a locked place so people cannot take it

1 5.8

Not singing or playing the right musical notes

Avoid extremes and do things in a balanced way

Doing something at the right moment is important for success

in a minor key
  • Specialized
1 6.6

Music that uses notes that make the song sound sad or serious

An important thing or action that helps deal with a problem

Put someone in prison and never let them out

Put someone in prison and never let them leave

Compounds

51 2.3

The main problems in a discussion or situation

47 3.1

A main idea in a talk or report

46 3.5

An important word used to find a text in a search

42 3.2

An important person who helps decide what happens in a group

35 3.6

An important part of a process, event, or group

The most important part of something, often in a recipe or plan

14 3.8

An important person who plays the main role in a group or event

14 3.0

A small round yellow-green lime with a very tart taste used in desserts

13 4.5

A voice or instrument that sounds in the wrong pitch

12 3.7

Important proof that helps decide a legal case or argument

11 3.4

A key that opens many different locks in a building

10 1.0

A small metal ring that holds keys together

3 6.7

A metal tool that opens many similar locks by having most teeth cut away

3 3.8

A small electronic device on a key ring that opens doors or starts a car

2 2.3

A metal key used to start a car engine

2 5.9

A set of notes that sounds sad or serious

key word
  • Specialized
2 6.2

A word that unlocks a secret message

2 2.7

A key on a keyboard that makes letters capital and types other characters

major key
  • Specialized
1 4.9

A set of musical notes that sounds bright and happy

1 4.7

A small low island of coral or limestone off the southern coast of Florida

key signature
  • Specialized
1 8.1

A digital mark added to a public key to show who owns it

command key
  • Specialized
1 3.6

A key on Apple keyboards that you press with other keys to use shortcuts

master key
  • Specialized
1 4.2

A secret code that lets you open many protected files or services

telegraph key
  • Archaic
1 7.7

A small lever device used to send messages as dots and dashes by making and breaking an electric circuit

1 2.1

A key on a keyboard that moves the cursor to a new line or starts a new command

control key
  • Specialized
1 2.8

A key on a computer keyboard that you press with other keys to do special actions

A key on a keyboard that deletes the letter or number before the cursor

tab key
  • Specialized
1 2.3

A key on a keyboard that moves the cursor to the right to indent or align text

hex key
  • Specialized
1 4.2

A small L-shaped tool used to turn screws with a six-sided hole

watch key
  • Archaic
1 9.0

A small metal key with a square hole used to wind old pocket devices that tell time

church key
  • Archaic
1 8.7

A small metal tool for making holes to open cans

screw key
  • Specialized
1 5.5

A small tool that fits into a screw head to turn it

skeleton key
  • Specialized
1 7.5

A secret password that lets someone get into many accounts or systems

1 4.7

A small L-shaped metal tool used to turn bolts and screws with six-sided holes

key signature
  • Specialized
1 5.5

A set of sharps or flats at the start of written music showing its key

1 3.6

A small thing on a key ring that makes keys easier to find

home key
  • Specialized
1 6.8

The main set of notes a piece of music returns to

1 7.1

A repeating decorative border made from one continuous line that forms square corners

tonic key
  • Specialized
1 8.1

The main note and scale that a piece of music returns to

1 7.2

A small fan-shaped tree that grows in southern Florida and Cuba

key ring
  • Specialized
1 4.1

A secure place on a computer that stores passwords and secret codes for apps and the system

1 9.9

Useful knowledge needed to survive and fit into street life

An important stop that helps people or goods move forward

1 6.7

A repeated decorative border of straight lines that turn in square corners, often on vases and buildings

ash-key
  • Specialized
9.9

A seed with a thin wing from an ash tree that the wind carries

key fruit
  • Specialized
9.3

A winged fruit from maple or ash trees with one seed that spins as it falls

3.2

An act of typing information into a computer or device

Inbus key
  • Specialized
9.0

A small metal tool with a six-sided end for turning screws with a matching hole

nut key
  • Jargon
8.9

A small tool climbers use to pull metal pieces from cracks in rock

Unbrako key
  • Specialized
7.4

A small metal tool with a six-sided tip that turns screws with a six-sided hole in the head

How Important

crucial
437 3.6
key
∞ 2.0
important
∞ 1.0
notable
114 3.7

Surface Forms

key positive

Etymology

The adjective key meaning 'important' comes from the same image of a key that 'opens' things, so a 'key' idea is one that opens the way or is most needed.