No， Cristiano Ronaldo did not participate in the 2018 FIFA World Cup. He was part of the Portuguese national team that participated in the 2014 FIFA World Cup in Brazil， where they eventually lost to Germany in the Round of 16. Since then， Ronaldo has been concentrating on club football， representing Real Madrid and now Juventus. He has not been called up for any of the Portuguese national teams since the 2018 World Cup.
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