English Language Learners Stack Exchange is a question and answer site for speakers of other languages learning English. It only takes a minute to sign up.
Sign up to join this community
to approve of an idea or of a person or organization and help them to be successful
to officially support a proposal made by another person in a meeting
They are like and both can mean "be behind someone".
In StackExchange, I often see someone will comment like I second you/your ... to show their agreements to the answer above.
To the case above, can second be replaced by support?
What difference between them?
When should I prefer one over another?
In your example about StackExchange, second can be replaced with support
Generally, second is more formal and support has a more broad meaning. Support can also be used for describing physical situations
"The beam supports the building, so it doesn't collapse"
"I will support your running for president"
Second is used while speaking formally, think business meetings and trials
"I second the motion"
