calamity, hazard, disaster, blow, collision
A synonym for emergency is accident. An antonym for emergency is calm.
The closest synonym is coincidence, but fortuitous coincidence is closer if you don't mind using two words.
Mislay, misplace. It's also used to denote financial misfortune, but this has no easy, direct synonym, as in, "I lost £100 on the deal." And as a euphemism for sensitivity in bereavement, as in "I lost my best friend in a road accident", meaning he or she died in the accident; but again with no direct synonym.
synonymize
word for word
Run-in, accident, situation, etc.
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.