The `oi’ is like the `oy’ in `boy’, `toy’, and `joy’; the following `g’ is silent. The first syllable `poign’ therefore rhymes with the word `coin’. The sound following the `n’ is like the `y’ in `yes’, `yell’, and `yellow’. The `a’ that follows is like the `a’ in `china’, and the main stress is on the first syllable.
When you say that something is `poignant’, what you mean is that it affects you very deeply and makes you feel rather sad.
Please change the channel. I am not in the mood to watch a poignant love story.