This is the 719th most frequent Spanish word.
recomienda
"Recomienda" means "he/she/it recommends" or "you recommend" (formal).
Here, 'recomiendas' is used in the second person singular, present tense, to form a direct question addressed to the listener asking for a recommendation.
¿Qué libro me recomiendas para comenzar?
What book do you recommend for me to start with?
In this example, 'recomienda' in the present tense expresses a suggestion made by a third party to a group, in this case, students by their teacher.
El profesor recomienda que los estudiantes practiquen a diario.
The teacher recommends that the students practice daily.
In this sentence, 'recomienda' is the conjugated form of the verb 'recomendar' corresponding to the third person singular in the present tense, indicating an action performed habitually by someone.