forest

les
[ˈfɒrɪst] (bot.) "The children got lost in the forest." (Děti se v lese ztratily.)

prales
[ˈfɒrɪst] (bot.) "Tropical rain forests used to cover 10% of the Earth's surface." (Tropické deštné pralesy/lesy kdysi pokrývaly 10% povrchu Země.)