Here is the list of pre-learned assertion words and their synonyms.
To assert that the specified select element contains the specified value.
Synonyms of contain : hold, carry, put, keep, in
Then "Colors" contains "Blue"
Then "Auto drive" is not in "Options"
To assert that the specified checkbox is checked / unchecked.
Then "Extra Cheese" is checked
Then "Extra Bacon" is unchecked
To assert that the specified element is visible.
Synonym of visible : displayed
Then "Welcome in Paris" is displayed
Then "Options" is not visible
To assert that the specified element is enable.
Then "Options" is enabled
To asserts that the specified value of the specified select element is selected / deselected.
Then "Blue" is selected as "Colors"
Then "Auto drive" is deselected from "Options"