better half 
noun informal
A person’s wife, husband, or partner: my better half doesn’t care much for restaurants...
- The bridegroom should be told that the girl's people having chosen him as the fittest match from among a whole lot, he should regard his wife as his better half, accord to her unflinching love and share with her all that he has.
- I have the most beautiful wife. She is certainly the better half.
- But if the truth be told, I simply called out to the better half: ‘Get in here love, and have a look at this face on telly’
- osteometric
- osteometrical
- osteometry
- osteomyelitis
- osteon
- osteone
- osteonecrosis
- osteonecrotic
- osteopath
- osteopathic
- osteopathically
- osteopathist
- osteopathy
- osteopenia
- osteoperiostitis
- osteopetrosis
- osteopetrotic
- osteophagia
- osteophyte
- osteophytic
- osteophytosis
- osteoplast
- osteoplastic
- osteoplasty
- osteoporosis