年 (Nián) is the word for Year. It's pronounced roughly like "knee-en".
今年 (Jīnnián) means "This year"
Years don't use up and down words like weeks and months. Instead:
去年 (Qùnián) means "Last year" (where Qù means "Go" – or in this case gone)
明年 (Míngnián) means "Next year" (where Míng literally means "Clear or bright")
Other periods are a bit different though. You don't double up the words like they do with weeks:
前年 (Qiánnián) is "The year before last". Qián usually relates to "in front of".
次年 (Cì nián) can be used for "The year after next", although there are alternatives to this.