Exodus 14:13 NKJV
And Moses said to the people, “Do not be afraid. Stand still, and see the salvation of the Lord, which He will accomplish for you today. For the Egyptians whom you see today, you shall see again no more forever.

II Chronicles 20:17 NKJV
You will not need to fight in this battle. Position yourselves, stand still and see the salvation of the Lord, who is with you, O Judah and Jerusalem!’ Do not fear or be dismayed; tomorrow go out against them, for the Lord is with you.”

From the Blue Letter Bible - both scriptures the same meanings except sl8ghtly different in 2 Chron 'Stand'

Stand still-to place, stand, set or station oneself.

See- to see, look at, inspect, perceive, consider, have vision, observe, discern, distinguish, give attention to, to cause to be seen, be shown, behold, to be exhibited.

Salvation- deliverance, welfare, prosperity, deliverance, helping, saving, health, wealth, victory.

He will shew- to do, fashion, accomplish, make, produce, to act with effect, put in order, to acquire, to appoint, ordain, to bring about.

Stand ye - stand, remain, endure, take one's stand, be in a standing attitude, to stand still, stop(moving or doing), cease, remain, continue, abide, to station, set, to cause to stand firm.