1A person's sister-in-law.
- ‘I think you should tell your SIL that you found her comments upsetting’
- ‘My nephew has more toys, books and clothes than he needs, and my SIL can find them at better prices than I can anyway.’
- ‘I was quite appalled at the treatment my SIL received when she had a baby.’
- ‘When my nephew was born, my SIL's group of close-knit friends referred to themselves as "aunties" to him.’
- ‘My SIL is infertile yet she loves babies and children.’
- ‘I told my SIL if she were to go through the operation I would take time off work to look after her and her children.’
- ‘Quite frankly, I think your SIL should grow up and get over herself.’