frühstücken
to have breakfast
To eat the first meal of the day, breakfast.
Ich frühstücke meistens nur einen Kaffee und ein Brötchen.
I usually just have coffee and a roll for breakfast.

to have breakfast
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to have breakfast
To eat the first meal of the day, breakfast.
Ich frühstücke meistens nur einen Kaffee und ein Brötchen.
I usually just have coffee and a roll for breakfast.

The verb 'frühstücken' (to have breakfast) is derived directly from the noun 'das Frühstück' (breakfast). This noun consists of 'früh' (early) and 'das Stück' (piece) — literally an 'early piece' of food in the morning.
Am Sonntag nehmen wir uns immer Zeit, um ausgiebig zu frühstücken.
On Sundays, we always take time to have a leisurely breakfast.
'Frühstücken' (to have breakfast) can be used both without and with an accusative object. Without an object, it describes the action in general; with an object, it states what you eat.
Wir frühstücken heute auf dem Balkon.
We're having breakfast on the balcony today.
The perfect tense of 'frühstücken' (to have breakfast) is always formed with the auxiliary verb 'haben' (to have). The past participle is 'gefrühstückt'.
Hast du heute Morgen schon gefrühstückt?
Have you already had breakfast this morning?
The verb is often combined with adverbs that describe the type of breakfast. Common examples are 'ausgiebig frühstücken' (to have a big/leisurely breakfast), 'spät frühstücken' (to have breakfast late), or 'gemeinsam frühstücken' (to have breakfast together).
Im Urlaub wollen wir jeden Tag spät frühstücken.
On vacation, we want to have breakfast late every day.
to eat
'essen' and 'frühstücken' both describe taking in food. 'essen' is the general word and fits any meal or even a small snack. 'frühstücken' is more specific: it means the first meal of the day, breakfast. Learners may confuse the words because having breakfast is also a kind of eating. If the time of day or meal is not important, use 'essen'. If you specifically mean the morning meal, 'frühstücken' is more natural and more precise.

Im Zug hat Lisa mit einem Freund gefrühstückt.
On the train, Lisa had breakfast with a friend.
Auf der Feier essen die Gäste später gemeinsam.
At the party, the guests will eat together later.