ホイッスルの音を聞くやいなや、彼らは全速力で走りだした。

Sentence Analyzer

English Translation

On hearing the whistle, they started at full speed.

Furigana

ホイッスルの音(おと)を聞(き)くやいなや、彼(かれ)らは全速力(ぜんそくりょく)で走(はし)りだした。

Romanji

Hoissuru no oto o kiku yainaya, karera wa zensokuryoku de hashiridashita.

Words

ホイッスル (ホイッスル)

whistle

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

音 (おと、ね、おん)

sound; noise; report; note; fame; Chinese-derived character reading

を (を)

indicates direct object of action; indicates subject of causative expression; indicates an area traversed; indicates time (period) over which action takes place; indicates point of departure or separation of action; indicates object of desire, like, hate, etc.

聞く (きく)

to hear; to listen (e.g. to music); to ask; to enquire; to query; to learn of; to hear about; to follow (advice); to comply with; to smell (esp. incense); to sample fragrance

や否や (やいなや)

the minute (that) ...; no sooner than ...; whether or not

彼ら (かれら)

they (usually male); them

は (は)

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

全速力 (ぜんそくりょく)

full speed

で (で、にて)

indicates location of action; at; in; indicates time of action; indicates means of action; cause of effect; by; and then; so; indicates continuing action; indicates certainty, emphasis, etc.

走る (はしる)

to run; to travel (movement of vehicles); to drive; to hurry to; to retreat (from battle); to take flight; to run away from home; to elope; to tend heavily toward