This is the 3657th most frequent Japanese word.
ec
In Japanese, "EC" stands for "electronic commerce," referring to online buying and selling of goods and services.
Here, 'EC' refers to 'electronic commerce', commonly abbreviated and used to describe online sales platforms or sites.
ECサイトで商品を購入しました。
I purchased an item on an e-commerce site.
In this sentence, 'EC' again stands for 'electronic commerce', referring broadly to the concept of online commercial activities.
ECが広がることで、便利になりました。
With the spread of e-commerce, things have become more convenient.
Here, 'EC' is used similarly to indicate a focus on e-commerce systems and platforms, used as a noun to describe the domain.