Genesis 7:23אַךְ
And every living thing on the face of the earth was destroyed—man and livestock, crawling creatures and birds of the air; they were blotted out from the earth, and only Noah and those with him in the ark remained.
Numbers 1:49אַךְ
“Do not number the tribe of Levi in the census with the other Israelites.
1 Samuel 1:23אַךְ
“Do what you think is best,” her husband Elkanah replied, “and stay here until you have weaned him. Only may the LORD confirm His word.” So Hannah stayed and nursed her son until she had weaned him.
Job 2:6אַךְ
“Very well,” said the LORD to Satan. “He is in your hands, but you must spare his life.”
Psalm 23:6אַךְ
Surely goodness and mercy will follow me all the days of my life, and I will dwell in the house of the LORD forever.
Jeremiah 2:35אַךְ
you say, ‘I am innocent. Surely His anger will turn from me.’ Behold, I will judge you, because you say, ‘I have not sinned.’

Brown-Driver-Briggs

אַךְ 159 adv. 1. surely. 2. with a restrictive force, emphasizing what follows

Sources: Brown-Driver-Briggs (1906, public domain) from the Open Scriptures Hebrew Lexicon (CC BY 4.0), glosses from STEPBible TBESH (CC BY 4.0); STEPBible TAHOT (Hebrew Bible, Leningrad Codex, CC BY 4.0); the Berean Standard Bible (public domain). Reformatted by Word Study, wording unchanged. All sources and licenses.