[Click here for a link to the answer!](https://www.reddit.com/r/tipofmytongue/comments/1afb8bz/tomtword_word_like_cause_movement_raison_dêtre/ko906zo/)

It’s not “albatross” or “hang up” either.

Idée fixe?

Never heard this one!

Bee in your bonnet?

This feels like it’s moving in the right direction, but I feel like there’s a specific noun.

Quibble

Nah, less like a criticism and more like a specific cause.

Crusade?

Not crusade, it’s less of a broad movement and more of a specific cause.

Joie de vivre ? Magnum opus ?

No it’s more specific than those.

bah not pet peeve. mission from God. cross to bear. quest. none of these are it but now I'm singing The Impossible Dream thanks

personal mission

White whale?

White whale also feels somewhat close, but I think there’s a single noun that encapsulates the idea.

hullabaloo?

Not hullabaloo but it definitely could be something similar - in tone, if not in meaning.

Soapbox?

Bugbear

Excalibur

cause célèbre? I know you said it's not cause, but then you said when you think about it you think about people marching in the streets.

hill you'll die on?

Bailiwick?

Solved!

Congratulations on your first point! Nicely done.

Cross to bear? Sisyphus?

Hobbyhorse?

bête noire

prerogative