君とは明日お別れだ。

君とは明日お別れだ。

I'm leaving you tomorrow.

君(きみ)とは明日(あした)お別(わか)れだ。

Kimi to wa ashita o wakare da.

君 (きみ)

you; buddy; pal; monarch; ruler; sovereign; (one's) master

と (と)

if; when; and; with; particle used for quoting (with speech, thoughts, etc.); quoting particle; promoted pawn; indicates question (sentence end)

は (は)

topic marker particle; indicates contrast with another option (stated or unstated); adds emphasis

明日 (あした、あす、みょうにち)

tomorrow; near future

御 (お、おん)

honorific/polite/humble prefix

別れ (わかれ)

parting; separation; farewell; (lateral) branch; fork; offshoot; division; section

だ (だ)

be; is; indicates past or completed action; indicates light imperative

Readings: クン、きみ、 -ぎみ

Meanings: mister, you, ruler, male name suffix

Readings: メイ、ミョウ、ミン、あ.かり、あか.るい、あか.るむ、あか.らむ、あき.らか、あ.ける、 -あ.け、あ.く、あ.くる、あ.かす

Meanings: bright, light

Readings: ニチ、ジツ、ひ、 -び、 -か

Meanings: day, sun, Japan, counter for days

Readings: ベツ、わか.れる、わ.ける

Meanings: separate, branch off, diverge, fork, another, extra, specially