瞬間(しゅんかん）：moment; second; instant

瞬：blink; twinkle; wink

on-reading シュン. kun-reading またたく

瞬く（またたく）：1. to twinkle (i.e. stars); to flicker; to waver 2. to blink (one’s eyes); to wink

---

間：interval; space

on-reading カン、ケン. kun-reading あいだ、ま

間（あいだ）：1. space (between); gap; interval; distance 2. time (between); pause; break 3. span (temporal or spatial); stretch; period (while) 4. relationship (between, among) 5. members (within, among) (conjunction) 

間（ま）：space; room; time; pause