凯特(kǎi tè) - Kate (given name transliteration) in Mandarin

凯特 (kǎi tè) is how the name Kate is written in Chinese. It turns up constantly in subtitles and translated fiction, which is why it sits this high in a frequency list built from film dialogue.

Transliterated names are chosen for sound, not sense. 凯 does mean triumphant and 特 does mean special, but nobody reads any of that into the name any more than an English speaker hears "pure" inside Katherine. The syllables simply approximate the English.

The useful habit here is recognising the shape. Two or three characters that make no lexical sense together, often including 特, 尔, 斯, 克 or 娜, are nearly always a foreign name. Stop trying to translate and read them aloud instead.