Hi. You did not enter the words to which this question refers, which makes it impossible for me to answer this question. However, I will try to help you as best I can.
The meaning of the words, you will only find out when you look them up in a dictionary, to speed up this search, you can put these words, one at a time, into a search site and the definition of the word will appear.
Regarding the identification of the stressed syllable, you should speak each word aloud to identify it. The syllable that you pronounce the most forcefully and with the loudest sound will be the stressed syllable.
