15. a tuxedo
synonym: cloak, frock, jacket, overcoat
antonym: formal wear, evening clothes, eveningwear
16. the years of a person's age from 13 to 19.
synonym: adolescent, youngster, juvenile, minor
antonym: middle-ager, adult, grown up, oldster
17. an alligator.
synonym: crocodilian reptile, crocodilian
18. an advertisement.
synonym: commercial, endorsement, flyer, promotion
antonym: unmake, extemporaneous, unprepared
19. a representation of a person or scene in the form of a print or transparent slide; recorded by a camera on light-sensitive material.
synonym: exposure, photograph, pic, picture
antonym: color dull unglazed unattractive invulnerability safety unavailability
