The words mean "lord", "our[s]" and "of Christ". They don't quite fit together to make a coherent Latin phrase: dominusis nominative (subject form), nostrum is accusative (object form) and Christi is genitive (possessive form).
A quick web search turns up one instance of this phrase (outside of WikiAnswers): in a sentence beginning "In nomine dominus nostrum Christi". This is evidently intended to mean "In the name of Christ our lord", which in correct Latin would be In nomine domini nostri Christi.
Dominus illuminati means [Lord of the Enlightened One]
Mare nostrum.
surrexit dominus
we are all
In English, 'dominus' means 'master'. ('Domina' would mean mistress.)
The Latin sentence 'Dominus fecit' may mean The Lord has made. Or it may mean The Lord has acted. In the word-by-word translation, the noun 'Dominus' means 'Lord'. The verb 'fecit' means '[he/she/it] acts or makes, does act or make, is acting or making'.
Rough translation: "If not master".
Only one God
Literally, 'pacem dominus' means 'Peace Lord'. 'Pacem Domini' means 'Peace Of the Lord'.
Dominus litis is used when a lawyer (and e.g. not his client) or prosecutor (and not the defendant) is the one who is in control of a law suit.
it means you are ugly
The literal meaning of "dominus" is master of a house. Secondary meanings are master or lord.