Vine's Expository Dictionary: View Entry
ὀξύς oxýs, oz-oos'; probably akin to the base of G188 ("acid"); keen; by analogy, rapid:—sharp, swift.
The KJV translates Strong's G3691 in the following manner: sharp (7x), swift (1x).
sharp
swift, quick
Strong's Number G3691 matches the Greek ὀξύς (oxys), which occurs 8 times in 7 verses in the TR Greek.
View OT results in the LXX Greek concordance
View NT results in the MGNT Greek concordance
Rom 3:15
Rev 1:16
Rev 2:12
Rev 14:14
Rev 14:17
Rev 14:18
Rev 19:15