Q: Does the word "tab" mean the same thing in "Pull the tab to open the can." and "The collar has a tab with a button hole."?

A: the same meaning

Q: Does the word "integrity" mean the same thing in "They admired his scrupulous professional integrity." and "He expects to find in us the common honesty and integrity of men of business."?

A: the same meaning

Q: Does the word "operation" mean the same thing in "They paid taxes on every stage of the operation." and "A multinational operation."?

A: the same meaning

Q: Does the word "act" mean the same thing in "She wants to act Lady Macbeth, but she is too young for the role." and "He acted the idiot."?

A:
different meanings