What to you does "Amen" mean?

The word Amen (Hebrew: אָמֵן, Modern Amen Tiberian ’Amen ; Arabic: آمين‎, ’Āmīn ; "So be it; truly" is a declaration of affirmation[1][2] found in the Hebrew Bible and New Testament. Its use in Judaism dates back to its earliest texts.[3] It has been generally adopted in Christian worship as a concluding word for prayers and hymns.[2] In Islam, it is the standard ending to Dua (supplication). Common English translations of the word amen include: "Verily", "Truly", "So be it", and "Let it be."