noun. type genus of the Muridae: common house mice; the tips of the upper incisors have a square notch.
1. Verb, non-3rd person singular present You mus pay for your credit score, which is a number from 300 to 850 that lenders use to rate your creditworthiness. 2. Adverb Cleaning toilet is not on the top of the list of most enjoyable things to do, however it mus be done from time to time.