“kay”主要有名词词性，意思是凯（女子名，等于Catherine）；K字形物；也可作为人名，读作（中）祁(广东话·威妥玛)；(老、柬)凯，发音为英 [keɪ] 、美 [keɪ]。具体如下：
凯（女子名，等于Catherine）：在英语中，“kay”可以作为女子名使用，等同于“Catherine”。例如在句子“How did Professor Kay feel when she finally completed the work of a lifetime?”中，“Professor Kay”指的就是凯教授。
K字形物：指形状类似字母“K”的物品。不过在日常使用中，这种含义相对较少见。
（中）祁(广东话·威妥玛)；(老、柬)凯：在不同文化和语言背景下，“kay”可作为人名，有不同的对应中文写法。例如在相关资料中出现的“Kay Yow had become a very successful basketball coach.” ，这里的“Kay Yow”就是一个人名。在例句“The roommate was not home, but Kay was.” 以及扩展资料“But now Kay was wiped completely out of his consciousness.” “Kay said tartly, 'And you're more Yankee than Italian.'” “Kay could see how Michael stood to receive their homage.” 中，“Kay”均作为人名使用。
