What are some nine letter words with 1st letter A and 4th letter O and 5th letter W and 7th letter O?

According to SOWPODS (the combination of Scrabble dictionaries used around the world) there are 4 words with the pattern A--OW-O--. That is, nine letter words with 1st letter A and 4th letter O and 5th letter W and 7th letter O. In alphabetical order, they are:

advowsons
arrowroot
arrowwood
arrowworm