meaningless

nonsense / meaninglessness

profound, deeply meaningful

semantics (as a field of study), semasiology

(colloquial) Clipping of 意味深長 (imishinchō).

meaningless

meaningful; suggestive; significant

a Japanese word of ancient Japanese origin (as opposed to a word borrowed from Chinese, or composed in Japan from Chinese-derived roots) / Japanese songs or poetry (such as tanka)

male language, men's words

the censorship of words which are considered politically incorrect