Tom was not really in the mood to have a word with that annoying man.

have 是动词，意思是"有"或"进行"。 a 是不定冠词，表示"一个"或"一次"。 word 在这里指"谈话"或"交谈"。 with 是介词，表示"和...一起"或"与..."。 have a word with 是一个固定短语，意思是"和某人谈话"或"与某人交谈"。