Usually when people are introduced they just say Naim Meod (נעים מאוד) which literally means "Very nice / Very pleasant". It's like an expression. But if I were to translate exactly what Nice to meet you says.. It would be: Naim lifgosh otkha(m)/otakh(f) - נעים לפגוש אותך. or in the context of introduction Naim lehakir otkha(m)/otakh(f) - נעים להכיר אותך. Lifgosh is to meet. Lehakir is to get to know.