年賀 (nenga) means “New Year's greeting”

More examples

海外にいる友人から年賀が届くと、うれしいです。kai gai ni i ru yū jin ka ra nen ga ga todo ku to u re shi i de su

I am happy when a New Year's greeting arrives from a friend overseas.

Covers the greeting, gift, or visit offered as part of celebrating the start of a new year.

年始nenshi: A greeting or visit made at the beginning of a new year.

新年を祝って交わすあいさつや贈る品物、訪問など。shin nen o iwa tte ka wa su a i sa tsu ya oku ru shina mono hō mon na do

The Sino-Japanese compound 年賀 (nenga) combines 年 (nen, "year") and 賀 (ga, "celebrate or congratulate"), giving the sense of celebrating the New Year.

Unlike the English word greeting, 年賀 (nenga) may also mean the gift or visit used to convey a New Year's message, so context determines the sense.