Meanings

1. particle, conjunctionif; when; afteralso ～だら
2. particlewhen it comes to ...; as for ...; that ...indicates light scorn, annoyance, surprise, etc. about a topic
3. particlewhy don't you ...; why not ...; how about ...; what about ...at sentence end
4. particleI tell you!; I said ...; I really mean ...at sentence end; adds emphasis; usu. ったら
5. particlevocative particleindicates frustration, impatience, etc.; usu. ったら

Examples

• 昨夜ベッドで本を読んでたら、電気をつけたまま寝てしまった。

  While I was reading in bed last night, I fell asleep with the light on.

• 私ったら馬鹿ね。

  That's really stupid.

• たばこ止めたら？

  Why don't you give up smoking?

Sentences from Tatoeba (CC BY 2.0 FR).