noun
Sendai Tanabata Festival
A famous Tanabata festival held in Sendai, typically in August, known for its large streamers and decorations.
仙台七夕まつりは毎年8月に行われます。
The Sendai Tanabata Festival is held every year in August.
仙台七夕まつりの飾りはとても華やかです。
The decorations of the Sendai Tanabata Festival are very gorgeous.
七夕 is the general Tanabata festival celebrated across Japan, while 仙台七夕まつり refers specifically to the large-scale event in Sendai.
Compound of 仙台 (Sendai, the city name) + 七夕 (Tanabata, the star festival) + まつり (festival). The alternative kanji 棚幡 is an old ateji for たなばた.