verb
ADVERB
▪ dramatically , greatly
▪
This latest attack has greatly ~ed fears of an all-out war.
▪ further
VERB + HEIGHTEN
▪ serve to
▪
Seeing others enjoying themselves only served to ~ his sense of loneliness.
Heighten is used with these nouns as the object: ↑ anticipation , ↑ anxiety , ↑ awareness , ↑ concern , ↑ contrast , ↑ drama , ↑ effect , ↑ expectation , ↑ fear , ↑ feeling , ↑ impression , ↑ need , ↑ perception , ↑ pressure , ↑ risk , ↑ sense , ↑ suspicion , ↑ tension