まっ四角[masshikaku] square
一天四海[ittenshikai] the world
下四半期[shimoshihanki] last quarter (of the year)
弦楽四重奏曲[gengakushijuusoukyoku] string quartet
再三再四[saisansaishi] repeatedly

三寒四温[sankanshion] alternation of three cold and four warm days
四つ[yottsu] four
四つんばい[yotsunbai] (crawl) on all fours
四つ角[yotsukado] four corners
四つ足[yotsuashi] four-footed (animal)

彼の方[anokata] that gentleman (lady)
此方[kochira] this way (direction close to the speaker or towards the speaker)
此方[konata] this way
其方[sochira] that way (direction distant from the speaker, close to the listener)
何方へ[dochirahe] how are you?

何方も[dochiramo] both
何方様[dochirasama] who
何方付かず[docchitsukazu] gray area
何方でも[donatademo] anyone
遣り方[yarikata] manner of doing