通年 (つうねん)all year; year round

all year; year roundnoun (common) (futsuumeishi), nouns which may take the genitive case particle 'no'

通年, its kanji, and other words that share them.Open this graph

Kanji in 通年

見通しみとおしunobstructed view; perspective
通信つうしんcorrespondence; communication
交通こうつうtraffic; transportation
共通きょうつうcommon; shared
普通ふつうnormal; ordinary
通常つうじょうusual; ordinary
通産省つうさんしょう(former) Ministry of International Trade and Industry (now Ministry of Economy, Trade and Industry); MITI
通貨つうかcurrency
今年ことしthis year
前年ぜんねんthe preceding year; the previous year
年間ねんかん(period of) a year
昨年さくねんlast year
来年らいねんnext year
一昨年おととしyear before last
周年しゅうねんwhole year; entire year
少年しょうねんboy; juvenile

See how 通年 connects to the rest of Japanese.