• 丁目ちょうめ — city district block
• 包丁ほうちょう — kitchen knife
• 丁度ちょうど — exactly, just, precisely
• 丁寧ていねい — polite / careful
• 丁重ていちょう — courteous, polite

The character 丁 is simple but versatile. It originally depicted a nail or spike and was later used to mean “fourth” in traditional orderings. It also appears in modern contexts for streets (丁目) and tools (包丁). Its radical 一 connects to the idea of flatness or singularity.