independent word; free-standing word
In Japanese grammar, a word that can stand alone as a meaningful unit, such as a noun, verb, or adjective, as opposed to a particle or auxiliary verb.
独立語 is also called 自立語 in Japanese grammar.
In this sentence, the noun and the verb are independent words.
Opposite: a dependent word that cannot stand alone, such as a particle or auxiliary verb.
Compound of 独立 (dokuritsu, 'independent') and 語 (go, 'word').