1. if; when; after
also ～だら
2. when it comes to ...; as for ...; that ...
indicates light scorn, annoyance, surprise, etc. about a topic
この子ったら母親を疑うの？Honestly, this child! Are you doubting your own mother?
3. why don't you ...; why not ...; how about ...; what about ...
at sentence end
4. I tell you!; I said ...; I really mean ...
at sentence end; adds emphasis; usu. ったら
5. vocative particle
indicates frustration, impatience, etc.; usu. ったら