回帰: return, recur

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”) / (slang) condom

七夕, 棚機, 織女: the Tanabata Japanese star festival held on 7 July

doubling, increasing two-fold / increasing