Similar words
ladeira
ladeira specifically means a steep hill or street for walking or driving; declive is a more general slope or downward incline.
encosta
encosta means a hillside or mountainside slope, a large geographic feature; declive is a more general slope or downward incline.
Similar in other languages
Spanish
vertiente
vertiente is the Spanish word for the same thing — both mean "slope."
French
pente
pente is the French word for the same thing — both mean "slope."
Practice
1 What does declive mean?
slope
2 Fill the gap: O terreno tem um ___.
Full sentence: O terreno tem um declive. (The land has a slope.)
3 Which fingerprint chart matches declive?
declive: neutral register, common frequency, general domain, neutral connotation.