This is the 891st most frequent Swedish word.
glada
"Glada" in Swedish means "happy" or "joyful" (plural or definite form). It can also refer to a "kite" (the bird).
Here, 'glada' is used as the plural form of the adjective 'glad,' meaning 'happy,' describing the subject 'De,' which is plural.
De är alltid glada över att se dig.
They are always happy to see you.
In this sentence, 'glada' is used to describe the birds ('fåglarna'), agreeing in plural form as is required in Swedish adjective-noun agreement.
Fåglarna sjunger på morgonen, de låter så glada.
The birds sing in the morning; they sound so cheerful.
Here, 'glada' describes the first person plural subject 'Vi,' aligning in plural form with the subject.