Tow -Party system implies that the only two parties

A two-party system means that there are only two dominant political parties in a country that have significant support from voters and can compete in elections at a national level. It does not necessarily mean that these two parties are the only ones allowed to exist or form coalitions with other parties. However, in practice, a two-party system tends to make it difficult for smaller parties to gain a foothold and win elections. Additionally, while the two dominant parties may not always be the ones in power, they are usually the most likely to be able to capture power.