開襟シャツ[kaikinshatsu] open-collared shirt
共襟[tomoeri] same-colored neckband (coloured)
胸襟[kyoukin] one's heart
襟巻[erimaki] muffler
襟巻き蜥蜴[erimakitokage] frilled lizard (Chlamydosaurus kingii)

襟元[erimoto] front of neck
襟首[erikubi] nape of neck
襟足[eriashi] nape of neck
襟髪[erigami] scruff of neck
半襟[haneri] quality collar for an under kimono