de

Particle

1. at; in

キャシーがパーティーでなんていたかおぼえていますか。
kyashiiga pātiide nanio kite itaka oboete imasuka.
Do you remember what Kathy had on at the party?
Particle

2. at; when

かれらはつぎ日曜にちようかげつ当地とうち滞在たいざいしていることになる。
karerawa tsugino nichiyōbide nikagetsu tōchini taizai shite iru kotoni naru.
They will have been staying here for two months next Sunday.
Particle

3. by; with

りつたいいちでレッズがつだろう。
kakeritsu ni taiichide rezzuga katsudarō.
The odds are two-to-one that the Reds win.
Conjunction

4. so; therefore; (and) then; accordingly

Colloquial
Related to それで
、電話でんわしてみたらしいんだけど、その電話でんわさき相手あいてってのが問題もんだいだったのよ。
de denwa shite mitara shiindakedo sono denwasakino aitette noga mondaidattanoyo.
And so it seems she tried phoning but it's who was on the other end of that phone that was the problem.
Conjunction

5. by the way; incidentally; now then; well

Colloquial
Related to ところで