御食い初め[okuizome] weaning ceremony
為初め[shisome] outset
為初める[shisomeru] to begin to do
仮初[karisome] temporary
業界初[gyoukaihatsu] the industry's first ...

月初め[tsukihajime] beginning of month
最初[saisho] beginning
初めに[hajimeni] to begin with (used as an introduction)
初めは[hajimeha] at first
手初めに[tehajimeni] at first

鴬色[uguisuiro] greenish brown
鴬嬢[uguisujou] female announcer

鴬張り[uguisubari] nightingale (flooring)
初鴬[hatsuuguisu] first Japanese bush warbler to chirp this year (i.e. spring)

鶯色[uguisuiro] greenish brown
鶯嬢[uguisujou] female announcer
鶯張り[uguisubari] nightingale (flooring)
高麗鶯[kouraiuguisu] black-naped oriole (Oriolus chinensis)
鶯茶[uguisucha] greenish brown

鶯餅[uguisumochi] mochi filled with red bean paste and topped with green soy flour
鶯貝[uguisugai] Pteria brevialata (species of wing oyster)
初鶯[hatsuuguisu] first Japanese bush warbler to chirp this year (i.e. spring)
鶯菜[uguisuna] young greens (of mizuna, Japanese mustard spinach, rape, etc.)