I. noun
( -s )
Etymology: Middle English, from gerund of seen, sen to see
1.
a. : the act of using one's sense of sight
seeing is believing
a sight worth seeing
recounts his seeings and doings — Virginia Woolf
b. : the faculty or power of sight or insight : vision
gain the gift of deeper seeing — Amy Lowell
2. : the quality of the images of celestial bodies observed telescopically as determined by the state of turbulence of the parts of the atmosphere through which the light has passed and usually rated on a scale from 0 for very poor quality to 10 for perfect quality
II. adjective
Etymology: Middle English, from present participle of seen, sen to see
: having the power of sight or insight
if not a blind force but a seeing force runs things — William James
• see·ing·ly adverb
III. conjunction
: in view of the fact that : inasmuch as : considering — often used with that or as