
sich lohnen
to be worth it
To be worthwhile or advantageous; to bring a positive return for an effort made.
Es hat sich wirklich gelohnt, für die Prüfung so viel zu lernen.
It was really worth it to study so much for the exam.
to be worth it / to reward
Loading your saved state.

to be worth it
To be worthwhile or advantageous; to bring a positive return for an effort made.
Es hat sich wirklich gelohnt, für die Prüfung so viel zu lernen.
It was really worth it to study so much for the exam.

to reward
To reward or compensate someone for an achievement, work, or effort. This use is rather formal or outdated.
Das Unternehmen lohnte die Mitarbeiter für ihre außerordentlichen Anstrengungen mit einer Prämie.
The company rewarded the employees for their extraordinary efforts with a bonus.
The verb 'lohnen' is closely related to the noun 'der Lohn', which means 'salary/wages' or 'reward'. This connection helps you understand the basic idea of the word: it is always about a return or reward for an effort.
Harte Arbeit verdient einen gerechten Lohn.
Hard work deserves fair pay.
The most common use is reflexive: 'sich lohnen' means 'to be worth it' or 'to be advantageous'. The rarer, non-reflexive form 'jemanden lohnen' means 'to reward someone' and always requires an accusative object.
Die lange Anfahrt hat sich gelohnt.
The long journey was worth it.
'Sich lohnen' is very often used in the impersonal form 'Es lohnt sich, ...' (It is worth it to ...), followed by an infinitive construction with 'zu'. This structure is ideal for expressing that a certain action makes sense.
Es lohnt sich, früh aufzustehen, um den Sonnenaufgang zu sehen.
It is worth getting up early to see the sunrise.
The meaning 'to reward someone' is rare today and belongs to a formal or literary style. In normal usage, the reflexive form 'sich lohnen' (to be worth it) is much more common.
Gott möge es Ihnen lohnen.
May God reward you for it.
to reward
Lohnen and belohnen can both express that someone receives recognition for an achievement. Transitive lohnen is formal or outdated in this meaning today. Belohnen is the usual choice in present-day German for money, a prize, praise, or another form of recognition.

In der alten Erzählung lohnte der König den Boten reich für seinen Mut.
In the old tale, the king richly rewarded the messenger for his courage.
Heute belohnt die Bürgermeisterin den mutigen Helfer mit einem Preis.
Today, the mayor rewards the brave helper with a prize.