• 老化ろうか — aging
• 老人ろうじん — old person / elder
• 老後ろうご — life after retirement
• 老舗しにせ — long-established shop
• 敬老けいろう — respect for the elderly
• 不老ふろう — agelessness

The kanji 老 depicts a figure with long hair and a cane — a traditional image of aging and wisdom. From this, it came to mean “old” or “elder.”

It appears in respectful or formal contexts about seniors, wisdom, or long-lasting traditions, as in 老舗しにせ (long-established shop).

彼かれは 老おいても 元気げんきです。
He is still healthy even in old age.

祖母そぼは 年としを 取とって 老ふけました。
My grandmother grew old in appearance over the years.