Shirabe
English jmdict
1
noun (common) (futsuumeishi) archaic secondary (thing);backup

Common numeric
English jmdict
1
numeric two;2
ふ and ふう used mainly when counting aloud; 弐, 貳 and 貮 are used in legal documents
その穴は直径二メートルです。
The hole is two meters across.
Other forms 2 【に】 · 弐 【に】 · 弍 【に】 · 貳 【に】 (word containing out-dated kanji or kanji usage) · 貮 【に】 (word containing out-dated kanji or kanji usage)