This is the 8376th most frequent Japanese word.
忠清
"忠清" is not a standard Japanese word or term. It may refer to a proper noun, such as a name. Context is needed for precise meaning.
Used as an adjective to describe someone's qualities of loyalty and purity.
彼は忠清な心を持っている。
He has a loyal and pure heart.
Here, 忠清 is used as a proper noun referring to the name of a village.
忠清という名前の村が存在します。
There is a village named '忠清'.
Used as a proper noun referring to a person's name transliterated into Japanese.