Answer: I don't know if you are looking for masculine or feminine so-1. visiteuses (feminine,) visiteurs(masculine)
2. Le monde for the world. 3. las parapluie or le parasol for umbrella. 4. la chaise for chair. 5. l'eau for water. 6. le sable or le cran for sand.
Step-by-step explanation:
Hope this helps!