SILS

Shortened version of School of Information and Library Science.

The SILS program at UNC is supposed to be really excellent.

by Yo386 September 29, 2010

SIL

Sister-In-Law

Wifes sister, brothers sister.

also see SILF - Sister In Law I'd Fuck

"Man, Your SIL is Smokin hot"

by EVP January 22, 2008

SIL

An abbreviation for Strong Independent Lady.

a) Term used to protect a woman from being called a derogatory name.

b) Term used as code for a mean, mean, witchy, shrew of a woman

You: "Man, my boss is such a $%^&!"

Them: "No she is just a Strong and Independent Lady and you just can't handle that."

You: "Yes! thanks for High Roading me there. You're a SIL too!"

Them: "Thanks!"

by Grymm Deth September 30, 2009

SIL

abbreviation for "sister-in-law"

My husband hadn't texted me back, so I just went to lunch alone with my SIL.

by shortysyndrome32 June 3, 2017

Sil

Sil- a shorter word for silly

Don’t be sil

by Lani p November 22, 2021

sil

something that is described as being cute, little, lovable, italian, gorgeous, and so on. Used when describing a person you feel affection towards.

Myles is such a sil! or Love you sil.

by lil em March 12, 2008

sil

a shortened version of silly

gosh nyomi! you're such a sil!

by Caitlin C November 12, 2005