• 家具かぐ — furniture
• 道具どうぐ — tool, implement
• 具合ぐあい — condition, state
• 文具ぶんぐ — stationery
• 雨具あまぐ — rain gear

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The character 具 is formed by combining a simplified “eye” element and a box-like container. It implies having everything arranged or provided — hence, the meaning “tool” or “equipment.”

道具どうぐを使つかって作つくります。
I will make it using tools.

雨具あまぐを持もって行いきましょう。
Let's go with rain gear.