Final answer:
The word 'impediment' functions as a noun and means an obstacle or hindrance that prevents or hampers movement or action. The term is often used in phrases like 'speech impediment.' Related phrases include 'obstacle,' 'hindrance,' 'barrier,' and 'roadblock.'
Step-by-step explanation:
The word impediment is primarily used as a noun in English. As a part of speech, it denotes something that obstructs or hinders progress. The definition of impediment is an obstruction, hindrance, or obstacle that prevents or hampers movement or action. A common phrase that includes the word is 'speech impediment,' which refers to a difficulty in speaking normally, such as a lisp or stutter.
Some related phrases that convey a similar meaning or are in the same semantic field as impediment might include 'obstacle,' 'hindrance,' 'barrier,' or 'roadblock.' These all denote something that may prevent or make it more challenging to accomplish a task or goal.