Translation guide
The habit or act of waking up and getting out of bed early in the morning. In Japanese, this is often expressed with set phrases or verbs rather than a single noun equivalent.
Describing the practice or custom of getting up early, often as a positive trait.
The most common and natural way to express 'early rising' as a noun or suru-verb. It refers to the act of waking up early, often as a habit.
Early rising brings a small profit. (proverb)
He is not good at early rising.
A more literal, explanatory phrase meaning 'the act of getting up early in the morning'. Useful when you need to be explicit.
Referring to someone who habitually gets up early (an early riser).
Describing a single instance of getting up early, not necessarily a habit.
The verb phrase 'to get up early'. Use this for a specific action rather than a general habit.
I have to get up early tomorrow.
早起き is a noun/suru-verb that implies a habitual action or the concept of early rising. 朝早く起きる is a verb phrase that describes the specific action of getting up early. Use 早起き when talking about the habit or trait, and 朝早く起きる when describing a particular instance.
Early rising feels good. (habitual)
I got up early this morning. (specific instance)
Getting up early in the morning is good for your health.
Literally 'morning-type person'. Often used in contrast to 'night owl' (夜型人間). Slightly more casual and modern.
She is a total morning person.