This is the 7582nd most frequent Portuguese word.
orquídeas
"Orquídeas" means "orchids," a type of flowering plant.
Here, 'orquídeas' is used as the subject of the sentence to denote the type of plant being described.
As orquídeas são plantas lindas e delicadas.
Orchids are beautiful and delicate plants.
In this sentence, 'orquídeas' serves as the direct object of the verb 'comprei' (I bought), specifying what was purchased.
Comprei orquídeas para decorar a minha casa.
I bought orchids to decorate my house.
Here, 'orquídeas' is used as the object of the preposition 'das' (of the), referring to the orchids being cared for.