- obconic
- obconical
- obcordate
- obduct
- obduracy
- obdurate
- obeah
- obedience
- obedient
- obeisance
- obelize
- obelus
- oberon
- obese
- obeseness
- obey
- obfuscate
- obfusticate
- obi
- obie
- obiit
- obit
- obiter
- obituarist
- obituary
- object
- object ball
- object glass
- object language
- object lens
- object lesson
- object plate
- object staff
- object teaching
- object writing
- object-line
- objectify
- objection
- objectionable
- objective
- objective case
- objective complement
- objective lens
- objective symptom
- objectivism
- objectivity
- objector
- objurgate
- oblanceolate
- oblast
臉書專頁