Most commonly mispronounced words

Most commonly mispronounced words:

serious/ˈsɪə.ri.əs/  #    series /ˈsɪə.riːz/

1. serious - severe in effect; bad

2. series - 1. a number of similar or related events or things, one following another
                          2. a number of games played by two teams
                         

 
Examples:
1. Why are you so serious?
2. We need to undertake some serious measures to solve this problem.
3. Series of road accidents resulted in casualties.
4. The two baseball clubs played a five-game series.