black belt

五日 (itsuka, go-nichi, “fifth (5th) day”) / 十日 (tōka, jū-nichi, “tenth (10th) day”) / 十五日 (jūgo-nichi, “fifteenth (15th) day”) / 二十日 (hatsuka, nijū-nichi, “twentieth (20th) day”)

to wear (a sword, decoration, etc.); to carry / to be entrusted (e.g. with a mission); to take on / to have a trace of; to be tinged with

A sash that is tied around the top edge of the obi which covers the obimakura "pillow".

A small pillow that is tied under the obi at the back which gives the obi musabi or "knot" its volume.

(topology) the Möbius strip

a nine-banded armadillo

Synonym of 自然人類学 (shizen jinruigaku): physical anthropology

physical anthropology

lack, shortage / to be absent / vacancy