Word: 科 (kē) 科 dictionary entry kē branch of study; administrative section; division; field; branch; stage directions; family (taxonomy); rules; and 4 more Full dictionary entry for 科 Example sentences using 科 3 sentences, showing page 1 of 1. 我不想挂科。 Wǒ bùxiǎng guà kē. I don't want to fail my exams. 我要挂科了！ Wǒ yào guà kē le! I'm going to fail the class! 我说拉科塔语。 Wǒ shuō lā kē tǎ yǔ. I speak Lakota.