This is tricky. 'Care' has several meanings.
If you mean the verb to care, then nurse, nurtureand protect are all synonyms. An antonym would be neglect.
If you meant, for example the noun care, as in custody of a person, then protection, supervision and tutelageare synonyms. An antonym would be the noun neglect.
you do not really care
Dermatology is a branch of medicine devoted to the study and care of the skin, there is no synonym.
care, conservation, preservation, sustaining, perpetuation, allowance, support, sustainment
A synonym for custody is "care" or "guardianship."
synonymize
word for word
The antonym of the word 'synonym' is 'antonym'.
"Alternate word" is a noun-phrase that is kind of a synonym for the word "synonym. There is no one exact word that means the same as synonym.
"Alternate word" is a noun-phrase that is kind of a synonym for the word "synonym. There is no one exact word that means the same as synonym.
what is a synonym for the word felony
Another name for the word synonym is poecilonym.
A synonym is a word that has an identical or very similar meaning to another word. As freshwaterbiome is not a word it does not have a synonym.