versus
preposition
uk/ˈvɜːsəs/ us(abbreviation v, or vs)used when comparing two ideas, opinions, etc.:
Economists were forecasting another sharp decline in the dollar versus the euro before year end.
used to show that two different people, groups, organizations, etc. are against each other in a competition, legal case, etc.:
A father versus son battle for control of one of Britain's largest home builders is under way at the construction group.
The Supreme Court's Brown vs. Board of Education decision is one of the most famous in US legal history.