crux /kruks/

1. A cross
2. Something that creates difficulty or perplexity, a puzzle
3. That on which a decision turns
4. The essential point, eg in a problem
5. (with cap) the Southern Cross (astronomy)

crux ansata /an-sāˈtə, or krŭks an-säˈta/ noun

A T-shaped cross with a loop at the top, the ankh

crux criticorum /krit-i-kōˈrəm or -rŭm/ noun

A puzzle for the critics

crux decussata /dē-kus-āˈtə or dā-kŭs-äˈta/ noun

An X-shaped cross, such as the cross of St Andrew or St Patrick

• non-stick
• non-stop
• nonsuch
• nonsuches
• nonsuit
• nonsuited
• nonsuiting
• nonsuits
• non-swimmer
• non-swimmers
• non-technical
• non-term
• non-terms
• non-thing
• non-things
• non-toxic
• non-U
• non-union
• non-unionist
• non-unionists
• nonuple
• nonuplet
• nonuplets
• non-usager
• non-usagers