彼女はボタンの一つがしっかり留まっていないのに気がつかなかった。

Sentence Analyzer

English Translation

She didn't notice one of her buttons unfastened.

Furigana

彼女(かのじょ)はボタンの一(ひと)つがしっかり留(と)まっていないのに気(き)がつかなかった。

Romanji

Kanojo wa botan no hitotsu ga shikkari tomatteinai noni ki ga tsukanakatta.

Words

彼女 (かのじょ)

she; her; her; girlfriend; sweetheart

は (は)

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

牡丹 (ぼたん、ボタン)

tree peony (Paeonia suffruticosa); moutan; wild boar (meat)

の (の)

indicates possessive; nominalizes verbs and adjectives; substitutes for "ga" in subordinate phrases; (at sentence-end, falling tone) indicates a confident conclusion; (at sentence-end) indicates emotional emphasis; (at sentence-end, rising tone) indicates question

一つ (ひとつ)

one; for one thing; only; (not) even; just (e.g. "just try it")

が (が)

indicates sentence subject (occasionally object); indicates possessive (esp. in literary expressions); but; however; still; and

確り (しっかり)

tightly (holding on); firmly; securely; strongly (built); solidly; sturdily; steadily; properly; well; sufficiently; hard (working, etc.); fully; completely; reliably; dependably; levelheadedly; shrewdly; wisely; cleverly

止まる (とまる)

to stop (moving); to come to a stop; to stop (doing, working, being supplied); to come to a halt; to cease; to be stopped; to be suspended; to alight; to perch on

のに (のに)

although; when; and yet; despite this; in spite of; even though; but even so; but even then; however; nevertheless; for all that; notwithstanding that; while; if only; I wish; I tell you; you should do; in order to

気 (き)

spirit; mind; heart; nature; disposition; motivation; intention; mood; feelings; atmosphere; essence

点く (つく)

to be lit (e.g. electricity comes on); to be lighted; to catch fire