Similar words
simiente
simiente is more literary or agricultural; semilla is the everyday word for "seed."
Similar in other languages
French
graine
graine is the French word for the same thing — both mean "seed."
Portuguese
semente
semente is the Portuguese word for the same thing — both mean "seed."
Practice
1 What does semilla mean?
seed
2 Fill the gap: Planto una ___ en la maceta.
Full sentence: Planto una semilla en la maceta. (I plant a seed in the pot.)
3 Which fingerprint chart matches semilla?
semilla: neutral register, common frequency, general domain, neutral connotation.