Obsession/əbˈseʃn/ Definition 1 of 3Pro Tip 1/3Excessive Focus The word 'obsession' indicates an extreme level of concentration on a subject. His obsession with the game made him forget about the time. Pro Tip 2/3Disruption Hint 'Obsession' suggests a possible interference with daily life or other interests. Her obsession with celebrity gossip is affecting her work. Pro Tip 3/3Emotional Charge Using 'obsession' may imply an emotional or passionate attachment to the subject. He speaks of his car collection with an obsession.