Has both technical and everyday senses. Technical: HF radio (3-30 MHz), high-frequency trading
高频交易, high-frequency surgery
高频手术. Everyday: anything that happens or appears often —
高频词 'high-frequency words',
高频问题 'frequently asked / occurring questions',
高频用户 'power user / frequent user'. Antonym:
低频 (dīpín) 'low-frequency'.