OBJECTIVE TRUTH: To say that a statement is “objectively true” means that it is true for people of all cultures, times, etc., even if they do not know it or recognize it to be true.
Examples:
“People need water and air to live.”
“Water freezes once it is chilled to a certain temperature.”
SUBJECTIVE TRUTH: To say that something is “subjectively true” means that it is true for the person(s) making the judgment, even though it may not be true for others.
Examples:
“It is freezing cold in here!” (Others might be sweating!)
“I am so happy!”