Need clarification on "field" - Mailing list pgsql-docs

From PG Doc comments form
Subject Need clarification on "field"
Date
Msg-id 171753084225.2021730.5364580176816695483@wrigleys.postgresql.org
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Responses Re: Need clarification on "field"
List pgsql-docs
The following documentation comment has been logged on the website:

Page: https://www.postgresql.org/docs/16/limits.html
Description:

Under page "https://www.postgresql.org/docs/current/limits.html", below
limitations are mentioned:

field size - 1 GB
identifier length - 63 bytes

I understand "identifier" as the name we provide for tables, columns etc.

By the way, what is "field" in Postgresql? I don't see any official
page/explanation for this.

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