Similar words
ola
oleada is more figurative, like a wave of tourists or a wave of protests; ola is more literal, an ocean wave.
Similar in other languages
Portuguese
onda
onda is the Portuguese word for the same thing — both mean "wave."
Practice
1 What does oleada mean?
wave
2 Fill the gap: Una ___ de calor.
Full sentence: Una oleada de calor. (A wave of heat.)
3 Which fingerprint chart matches oleada?
oleada: neutral register, academic frequency, general domain, neutral connotation.