* **widow** - A widow is a woman whose husband has died. Jesus' hearers would have thought of her as without defense against evildoers.
* **help me get justice against** - This could be translated as "punish" or "grant me retribution against."
* **my opponent** - "my enemy" or "the person who is trying to harm me." This is an opponent in a lawsuit. It is not clear whether the woman is suing the man or the man is suing the woman.
* **fear God** - "revere God"
* **man** - This refers here to "people" in general.
* **causes me trouble** - This can also be translated as "bothers me."