Above all, remember to lock the door when you leave.
above all
idiomyou use this to say that one thing is more important than everything else you have mentioned.
Origin
disputed originFrom Middle English [Term?]. Compare Dutch bovenal (“above all”).
We need to finish the project on time, but above all, we must ensure the quality is perfect.
The leader argued that while economic growth was necessary, above all, the government had to protect the rights of its citizens.
Last updated April 22, 2026