Here is a context clues worksheet on the noun acrimony. I suspect that its adjectival form, acrimonious, is probably in more common usage in the English language. In any case, acrimony and the concept it represents probably ought to be a part of a high school student’s linguistic toolkit.
If you find typos in this document, I would appreciate a notification. And, as always, if you find this material useful in your practice, I would be grateful to hear what you think of it. I seek your peer review.