Yes, paces is a Scrabble word!

Verb

1. Walk with slow or fast paces

2. Go at a pace

3. Measure (distances) by pacing

4. Regulate or set the pace of

Noun

1. The rate of moving (especially walking or running)

2. The distance covered by a step

3. The relative speed of progress or change

4. A step in walking or running

5. The rate of some repeating event

6. A unit of length equal to 3 feet; defined as 91.44 centimeters; originally taken to be the average length of a stride