obsession noun
ADJ. dangerous, unhealthy | current
VERB + OBSESSION become Don't let this interest of yours become an obsession.
PREP. ~ with I don't understand television's current obsession with cookery programmes.
PHRASES in the grip of an obsession He was in the grip of an obsession and would not listen to reason.
You can also check other dicts: obsession (English, 中文解释 ), wordnet sense, Collins Definition