Strong’s Greek
G3463 — murioi
The entry below is Strong’s own definition (1890, public domain), and every verse where the word occurs.
μύριοι
murioi — pronounced moo'-ree-oi
plural of an apparently primary word (properly, meaning very many); ten thousand; by extension, innumerably many:--ten thousand.
3 occurrences in the KJV.
Matthew 18:24
And when he had begun to reckon, one was brought unto him, which owed him ten thousand talents.
1 Corinthians 4:15
For though ye have ten thousand instructers in Christ, yet have ye not many fathers: for in Christ Jesus I have begotten you through the gospel.
1 Corinthians 14:19
Yet in the church I had rather speak five words with my understanding, that by my voice I might teach others also, than ten thousand words in an unknown tongue.