第四 dai⁶ sei³ {dì sì}

the fourth

第四紀〔--纪〕 dai⁶ sei³ gei² {dì sì jì}

1. fourth period
2. quaternary (geological period covering the recent ice ages over the last 180,000 years)

第四季 dai⁶ sei³ gwai³ {dì sì jì}

fourth quarter

第四聲〔--声〕 dai⁶ sei³ sing¹ {dì sì shēng}

1. fourth tone in Mandarin
2. falling tone

第四臺〔--台〕 dai⁶ sei³ toi⁴ {dì sì tái}

1. fourth channel
2. (in Taiwan) cable TV, FTV

第四季度 dai⁶ sei³ gwai³ dou⁶ {dì sì jì dù}

fourth quarter (of financial year)