This is the 770th most frequent Catalan word.
busca
The Catalan word "busca" means "search" or "needle" (context-dependent).
Here, 'busca' is the conjugated form of the verb 'buscar', meaning 'to search for or to look for'.
La nena busca la seva nina pel jardÃ.
The girl looks for her doll in the garden.
In this sentence, 'busca' refers to the noun form meaning 'wick', as in the wick of a candle.
Encara hi ha una espelma amb busca a la calaixera.
There is still a candle with a wick in the dresser.
Here, 'busca' is used as a command form (second person singular imperative) of the verb 'buscar', instructing someone to look for a quiet place.