rubber (natural and synthetic) · plastic · a rubber tree, hevea (Hevea brasiliensis)
çekim: çoğul caoutchoucs
eş: gomme élastique, figuier caoutchouc
köken: Borrowed from Spanish cauchuc (an early variant of caucho), from Quechua kawchu. The final -c was formerly variably pronounced or silent, but is now always silent.
gum, various viscous or sticky substances exuded by certain plants or produced synthetically · an object made from gum · alternative form of gum (“eraser”)
çekim: çoğul gommen
köken: From Middle Dutch gomme, from Old French gomme, from Late Latin gumma, from earlier gummi, cummi.
rubber (pliable material derived from the sap of the rubber tree) · eraser (thing used to remove something written or drawn by a pen or a pencil) · wineskin (bag for holding wine)
çekim: çoğul borrachas
köken: Borrowed from Spanish borracha (“wineskin”); because native Amazonians used rubber to make waterskins, the meaning began to apply to the substance.
rubber (pliable material derived from the sap of the rubber tree) · short for 消しゴム (keshi-gomu, “rubber (eraser)”) · short for ヘアゴム (hea-gomu, “hair tie, scrunchie”)
futile (of a promise, not intended to be kept) · uncovered, bounced, unbacked (not backed with sufficient funds, as a cheque) · groundless, baseless (without any grounds to support it, like a rumor)