This is the 10241st most frequent Portuguese word.
erva
Herb or grass.
In this sentence, 'erva' is used to refer to an herb used to prepare tea.
Eu gosto de chá de erva cidreira para relaxar.
I like lemon balm tea to relax.
Here, 'ervas' refers to various plants categorized as herbs.
Cuidado ao colher as ervas, algumas podem ser venenosas.
Be careful when picking herbs, some may be poisonous.
In this sentence, 'ervas' again signifies various herb plants collectively.