Short for サブチャンネル.

a movie (motion picture) / Synonym of アニメーション (animēshon, “animation”) (causing images to appear to move) / (animation) an in-between frame

new, novel / latest, recent / modern / fresh

(archaic) new, novel / (archaic) latest, recent / (archaic) modern / (archaic) fresh

(obsolete) Alternative spelling of 新たし (aratashi): new, novel

(obsolete) Same as あたらし (atarashi) above

substitute / submarine (undersea boat) / (broadcasting) Short for サブコントロールルーム (sabu-kontorōru rūmu).

sub-

to see, to watch, to observe, to look at something / to look over, to examine, to judge / to take care of, to look after, to keep an eye on somebody

disgraceful, shameful, indecent / shabby, unsightly