- Nomadic: nomade
- Warlike: guerrier / belliqueux
- Will: volonté
- Toll: péage
- Upriver: à contre courant
- Contentions: dispute / conflit
- To draw (a weapon): dégainer
- To wave: faire un signe de la main
- To avert: éviter
- By the time Lewis and Clark encountered them
- The Teton attacked
- I was impérative
- When the expedition prepared