The phrasal verb "sign into" generally finds its usage in both formal and informal contexts, though it is more prevalent in technology-related contexts where individuals refer to accessing digital platforms or systems. In informal speech, people use "sign into" when talking about logging into personal accounts on social media, email, or other online services. In formal contexts, it is often found in workplace settings or instructional documents guiding users on how to access local networks or enterprise software systems. "Sign into" is specifically used when there is a pre-existing account or profile that needs to be accessed, distinguishing it from "sign up for," which refers to the process of creating an account. The increased digitization of services has made this phrasal verb a common part of contemporary language, reflecting the routine interaction with technology in daily life.
B2
UpperIntermediate
1. To enter one's credentials to log into a digital system such as a website, application, or device.
You need to sign into your email account to check your messages.
He forgot to sign into his account before the meeting began.
She cannot access the files until she signs into the network.
To view this content, please sign into the site.
He used his password to sign into the online service.