The punctuation mark that indicates words were removed is a(n)

To indicate that words were removed,  we need to use  the ellipsis mark. It is made of three consecutive dots in the place where the word/s should be. Depending on the type of work (formal or informal) you might find the dots between square  brackets 

For example: "the park that I loved was near my house"
Ellipsis: "the park ... was near my house".
Ellipsis with square brackets: " the park  […] was near my house".

1.Women and men work well together.

4.People can suit each other when they come together as companions.

5.Companionship is good for people.