Synonyms:
cardinal, central, fundamental, key, primal
Meaning: serving as an essential component; "a cardinal rule"; "the central cause of the problem"; "an example that was fundamental to the argument"; "computers are fundamental to modern industrial structure"
noun
meaning of the word
Synonyms:
key
Meaning: metal device shaped in such a way that when it is inserted into the appropriate lock the lock's mechanism can be rotated
Synonyms:
key
Meaning: something crucial for explaining; "the key to development is economic integration"
Synonyms:
key
Meaning: pitch of the voice; "he spoke in a low key"
Synonyms:
key, tonality
Meaning: any of 24 major or minor diatonic scales that provide the tonal framework for a piece of music
verb
meaning of the word
Synonyms:
identify, discover, key, key_out, distinguish, describe, name
Meaning: identify as in botany or biology, for example