noun
one or two; a few
Used to indicate a small number, often in contexts like 'one or two things' or 'a few people'. The 'first and second' gloss is a literal reading but not a common standalone meaning.
一二の例を挙げて説明します。
I'll explain with one or two examples.
会議には一二の質問が出た。
A few questions came up at the meeting.