• 卒業そつぎょう — graduation
• 新卒しんそつ — new graduate
• 兵卒へいそつ — foot soldier
• 卒そつ — soldier, private
• 卒倒そっとう — fainting, collapsing
• 卒年そつねん — graduation year

The character 卒 originally depicted a person wearing ceremonial clothes with a seal, symbolizing order and completion. Over time, its meaning expanded to include soldiers and, by extension, the concept of finishing a process — such as education or a term of service.

彼かれは 大学だいがくを卒業そつぎょうしたばかりです。
He just graduated from college.

新卒しんそつの学生がくせいが 会社かいしゃに入はいってきた。
A newly graduated student joined the company.

🎧 The on-yomi ソツ (sotsu) is commonly used in compound words like 卒業 and 新卒. The kun-yomi readings おえる and おわる relate to finishing something but are rarely used in modern standalone usage.