How to use these words and please give sample sentences. Also, is awaiting has the same meaning as pending? Thank you so much for all the help.
"Awaiting" is transitive, that is, you must use it with an object. "Waiting" is intransitive, unless you are talking about "waiting tables", which means serving food. Although you can't use an object directly with "waiting", you can provide either "for" with a noun or noun phrase, or an infinitive. Effectively, "waiting for" and "awaiting" are interchangeable, although the former usually sounds more natural. Here are some examples.
  • I am waiting for a train.
  • I am waiting to use the bathroom.
  • I am awaiting the arrival of my mother.
Thank you very much.