- 三级跳 sānjítiào triple jump(sport) hop, step and jump; triple jump
- 三级跳远 sānjítiàoyuǎn triple jumpthe triple jump in track and field; also called the hop, step, and jump
- 三级士官 sānjíshìguān staff sergeanta non-commissioned officer rank; specifically a third-class sergeant
- 三级片 sānjípiàn Category III filmX-rated or restricted movie containing sexual or violent content; typical of the Hong Kong film rating system
- 第三级产业 dìsānjíchǎnyè tertiary industryservice sector or tertiary industry of an economy, including services and commerce