Yes, march is a Scrabble word!

Verb

1. March in a procession

2. Force to march

3. Walk fast, with regular or measured steps; walk with a stride

4. March in protest; take part in a demonstration

5. Walk ostentatiously

6. Cause to march or go at a marching pace

7. Lie adjacent to another or share a boundary

Noun

1. The month following February and preceding April

2. The act of marching; walking with regular steps (especially in a procession of some kind)

3. A steady advance

4. A procession of people walking together

5. District consisting of the area on either side of a border or boundary of a country or an area

6. Genre of music written for marching

7. A degree granted for the successful completion of advanced study of architecture