Here are the matched definitions to the corresponding words:
- one half of a school year - semester
- the principle of life; vigor; energy - vitality
- nonstandard vocabulary used by a particular group - slang
- having to do with spiritual matters - spirituality
- a fungus used to make bread dough rise - yeast
- a native of Italy; pertaining to Italy - Italian
- unintentional - accidental
- fine; satisfactory; good - all right
- one who is addicted to alcoholic beverages - alcoholic
- to make worse - aggravate