Translation guide
The animal 'lion' is straightforward in Japanese. The most common word is ライオン (raion), a loanword from English. The native Japanese word 獅子 (shishi) is also used, but is more literary or traditional. For learners, ライオン is the default choice in almost all everyday contexts.
lion (animal)
Referring to the large wild cat, in general or specific contexts.
The standard, everyday word for 'lion'. Used in conversation, news, children's books, zoos, etc. This is the safest choice for learners.
I saw a lion at the zoo.
The lion is called the king of beasts.
The native Japanese word for 'lion'. It sounds more formal, literary, or traditional. Often used in set phrases, idioms, or artistic contexts. Not typically used in casual conversation about real lions.
The lion is considered a symbol of courage.
The lion dance is a traditional New Year's dance.
Describing someone as lion-like in courage or strength.
Referring to the astrological sign Leo.
The standard term for the zodiac sign Leo. Note that it uses 獅子 (shishi) + 座 (za, 'constellation/sign'), not ライオン.
My zodiac sign is Leo.
ライオン is the everyday word for the animal. 獅子 is used in traditional contexts, idioms, and the zodiac sign. Using 獅子 for a real lion in casual speech can sound overly formal or poetic.
I saw a lion on the savanna.
The lion dance is a traditional performing art originating from China.
A four-character idiom meaning 'with the fierce energy of a lion'. Describes someone acting with tremendous vigor or ferocity. Literary and somewhat rare.
He led the team to victory with lion-like ferocity.