Here are some:
6-letter words
option
7-letter words
caption
8-letter words
adaption, adoption, cooption, eruption, gumption, sorption
9-letter words
abruption, deception, exception, exemption, inception, irruption, reception
10-letter words
absorption, adsorption, ascription, assumption, conception, conniption, corruption, decryption, desorption, disruption, encryption, excerption, miscaption, perception, preemption, redemption, resorption, resumption, subreption
11-letter words
consumption, contraption, description, inscription, presumption, subsumption
12-letter words
apperception, conscription, incorruption, interception, interruption, prescription, proscription, reconception, subscription
13-letter words
chemisorption, contraception, malabsorption, misassumption, misconception, misperception, preconception, redescription, transcription
14-letter words
anticorruption, chemoreception, misdescription, nonconsumption, photoreception, postconception, proprioception, superscription
15-letter words
circumscription, intussusception, nonprescription, overconsumption
16-letter words
mechanoreception, mistranscription, overprescription, oversubscription