Should Mother-In-Law Be Capitalised?

[bednobs]

in a letter

[Flonska]

if it is used as a proper noun - instead of her name, the conventions is yes . . . capitalise.

Answer from one source:-

http://blog.dictionary.com/capitalizing-family/

You may receive others . . .

[bednobs]

in the letter i am referring to "your mother-in-law" so it's not in place of her name

[hc4361]

In that case, no

[Mamyalynne]

Lower case in the above sample sentence bednobs.

[Hopkirk]

Capital punishment for mothers in law? Now there's an idea.

[25or6to4]

Euthanised ?

[ichkeria]

The source quoted is US. maybe that is an Americal convention, but I've never heard of it in Britain. "Mother-in-law" is not a proper noun and should never be capitalised.

[ethandron]

Thought you were having trouble with your mother in law Bednobs, and read it as 'decapitated'... ;)

[Jackdaw33]

But ich, you have just capitalised it!

[Old_Geezer]

Me to eth :-)

If your MIL is big enough, feel free to capitalise her.

[fiction-factory]

ickeria only capitalised mother inlaw by using a capital M as it was the first word in a sentence.
If I was talking about my mother I wouldn't use one ("my mother is 80 next year") . If I was addressing her I would: "Oh, Mother, what are you doing now?"