猜测单词的意思用英语可以说是"guess the meaning of a word"，意思是猜测一个单词的意思。来源是由guess和meaning这两个单词组合而成。
例句：
Can you guess the meaning of this word? 你能猜出这个单词的意思吗？
He had to guess the meaning of the word from context. 他不得不从上下文中猜测这个单词的意思。
I can't guess the meaning of this word, can you help me? 我猜不出这个单词的意思，你能帮帮我吗？