heighten

definition: make more intense, stronger, or more marked
example:
speech part: verb
synonyms: compound
definition: increase
example:
speech part: verb
synonyms: raise
definition: make (one's senses) more acute
example:
speech part: verb
synonyms: sharpen
definition: make more extreme
example:
speech part: verb
synonyms:
definition: become more extreme
example: The tension heightened
speech part: verb
synonyms: rise
definition: increase the height of
example: The athletes kept jumping over the steadily heightened bars
speech part: verb
synonyms:

heighten is explained and pronounced

How heighten is being used?