jot down

to make a quick note.

• I should jot that down.
• Tom jotted down a message to Mary.
• Tom jotted down something in his notebook.
• Just jot your name down on a piece of paper.
• Tom jotted down the meeting time in his diary.
• Tom jotted down a few notes while he was talking on the phone.
• Tom jotted down some notes so he'd remember the main points decided on.