@-ptv-trash-
About NaLu.....
It's not actually a word, it's a relationship name. Natsu X Lucy, from the anime Fairy Tail. They aren't actually in love in the show, but yeah. Don't get me wrong, it still means ocean where you come from, but when somebody thinks that two people would go well together, real or fictional, they usually make a relationship name, or as usually referred to, a 'Ship' name, by combing the two people's names. NaLu just so happens to be the ship name for Natsu X Lucy, and so you may have gotten confused.
I hope that cleared things up >.>