• 夫婦ふうふ — married couple
• 丈夫じょうぶ — strong / durable
• 工夫くふう — ingenuity / clever device
• 大丈夫だいじょうぶ — it’s okay / safe
• 漁夫ぎょふ — fisherman

The top stroke is a mark or headband, symbolizing dignity or role. Combined with 大 ("big"), the character represents a man standing tall — a respectful or mature male figure, often used for one’s husband or a male adult.