flower_power said:The easiest way to get an answer is to go to a dictionary website. Type the word in, and you'll get the definition(s). It's a good way to teach kids how to do their own searches & how to use a dictionary.
Here's the link to the Merriam-Webster dictionary site.
http://www.merriam-webster.com/dictionary/workhorse
Or, you can also type the word in the search box on your home page.