Telling a girl she looks "great"

Now, I know that different girls react to different things in different ways and that there are certain things you should say to "girlfriends" girl "friends" and random women; I get that and that's all but fine and dandy. But when I say a girl looks "great", does she assume I'm saying she's cute, hot, sexy, pretty, gorgeous, beautiful. I just told this girl that I think may like me that she looks "great" and she said "awe" but I really want to know what might be going through her mind.

The reason I told her she looked "great" instead of something like pretty or cute is because I didn't want to use the "wrong" word and offend her.

Best answer goes to the person who can honestly explain to me how this girl saw this as. COMPLETE HONESTY
Telling a girl she looks "great"
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