Translation guide
The word 'facet' refers to one side or aspect of something complex, like a gemstone or an issue. In Japanese, the translation depends on whether you mean a physical surface, a figurative aspect, or a specific domain.
To refer to one part or aspect of a complex thing, like a problem, personality, or situation.
The most common and versatile word for 'facet' in a figurative sense. It literally means 'side surface' and is used for aspects of problems, personalities, systems, etc.
This problem has several facets.
I saw a new facet of his personality.
Means 'one side' or 'one aspect'. Often used when emphasizing that it's just one part of a larger whole, sometimes with a nuance of 'on the other hand'.
He also has a strict facet (to his personality).
I was able to see a different facet of this town.
Means 'element' or 'factor'. Used when a facet is a component or constituent part of something.
An important facet of success is perseverance.
Refers to a phase or aspect of a situation, often used in formal or analytical contexts. It can sound a bit stiff in casual conversation.
We have entered a new facet (phase) of the situation.
To refer to the flat, polished surfaces on a cut gemstone or a similar geometric face.
The general word for a flat surface or face. In the context of gems, it specifically means a facet.
The facets of the diamond reflect light.
The direct loanword from English, used in technical or jewelry contexts. It's understood but less common than 面 in everyday language.
Literally 'small face', used in very technical gemology to refer to small facets. Not common in everyday speech.
The small facets of the cut are precise.
To refer to the individual optical units that make up the compound eye of insects or crustaceans.
The standard biological term for an ommatidium, the individual facet of a compound eye.
An insect's compound eye consists of many facets.
側面 (そくめん) is the safest choice for 'facet' in most abstract contexts. 一面 (いちめん) often implies 'one side' and is frequently used in the pattern 〜一面もある (also has a ... side). Use 側面 when you want to sound neutral and analytical, and 一面 when you want to highlight a particular, sometimes contrasting, aspect.
While ファセット is a direct loanword, it is mainly used in technical fields like gemology or computer graphics. For general figurative use, 側面 or 一面 are much more natural.
この宝石は多くのファセットにカットされている。
This gem is cut with many facets.