FIL

Texting & Internet Slang abbreviation · Parenting Forum

FIL
Stands forFather-in-law
CategoriesTexting & Internet Slang

FIL stands for Father-in-law, a parenting forum abbreviation.

The father of one's spouse, as in "FIL offered to help with the deposit." Used on family, wedding and parenting forums.

Example: FIL is surprisingly great with the baby, he's on diaper duty every Sunday.

Usage notes

Appears less often than MIL in forum complaints, a pattern frequently joked about by posters. Part of the in-law family with MIL, SIL and BIL. Outside forums, FIL can be an abbreviation for fillet or filament.

More parenting forum abbreviations

  • DSD – Dear stepdaughter
  • DSS – Dear stepson
  • DW – Dear wife
  • EBF – Exclusively breastfed (or breastfeeding)
  • EP – Exclusively pumping
  • FF – Formula feeding
  • FTM – First-time mom
  • HPT – Home pregnancy test
  • LO – Little one
  • MC – Miscarriage
  • MIL – Mother-in-law
  • NCT – National Childbirth Trust

See all 42 parenting forum abbreviations →

Edited by the AbbreviationList.com team. Spotted an error or a missing meaning? Contact us.