負(ふ)

負(ふ) indicates something negative, minus, or unfavorable in technical and abstract contexts.

Mathematical usage

• 負(ふ)の数(すう): negative number
• 負(ふ)の値(あたい): negative value
• 負(ふ)の符号(ふごう): minus sign (-)
• Opposite: 正(せい) (positive)

Extended usage

• 負(ふ)の遺産(いさん): negative legacy
• 負(ふ)の連鎖(れんさ): vicious cycle, negative chain
• 負(ふ)の影響(えいきょう): negative influence
• 勝(か)ち負(ま)け: win or lose

OTHER READINGS OF 負(ふ):
The kanji 負(ふ) has multiple readings with different meanings:

• 負(ま)ける: to lose (a game/competition)
• 負(お)う: to bear, carry on one's back
• 負(ま)かす: to defeat

These are all separate dictionary entries.