jpdb beta

smallness; small item; short month (i.e. having fewer than 31 days); elementary school; smaller (of two things, places, etc. with the same name); inferior; younger (of two people with the same name)

sinus; cavity; antrum; neighborhood (administrative division in North Korea)

① スズメ目ツバメ科ツバメ属の渡り鳥で、人の居住するところで普通に見られる。春になると南方から日本へやってきて、秋に去る。学名:Hirundo rustica。