geminate

definition: a doubled or long consonant
example: The 'n' in 'thinness' is a geminate.
speech part: noun
synonyms:
definition: arrange or combine in pairs
example: The consonants are geminated in these words
speech part: verb
synonyms:
definition: arrange in pairs
example:
speech part: verb
synonyms: pair
definition: occur in pairs
example:
speech part: verb
synonyms: pair
definition: form by reduplication
example:
speech part: verb
synonyms: reduplicate

How geminate is being used?