捕 (bǔ) is a formal, written verb meaning 'to catch, to capture', often used in compounds like 捕捉 and 捕获. It is more literary than the everyday 抓 (zhuā, HSK5 'to grab/catch') and similar to 捉 (zhuō, HSK6) but less common in spoken Chinese. Use 捕 in formal writing or when referring to systematic capture (e.g., police, hunting).