訓 せん(ずる),かい,あき(らか) ・ 音 セン
漢越音: thuyên
Speech 言 with 全 (whole) giving the sound: discussing a matter thoroughly to the end; 所詮 means "after all".
Stroke data: KanjiVG (CC BY-SA 3.0) — kanjivg.tagaini.net
所詮、夢は夢だ。 (しょせんゆめはゆめだ)
After all, a dream is just a dream.