Hangul Syllable Res

Read the surrounding Korean word.

By itself, 렛 is one Hangul syllable block, not a picture with a fixed message. In tennis, 렛 is the Korean spelling used for “let”: a serve that hits the net but lands in the correct box, or meets another let condition, is replayed instead of counted as a fault.

In 렛츠 플레이, it is the first syllable of the Korean transliteration of “Let’s Play,” the gaming-video format. The block itself has not changed meaning; its neighboring syllables tell you which word you are reading.

Why does 렛 look like a square?

It belongs to Hangul's compositional writing system.

Hangul's documented starting point is 1443; the 1446 Hunminjeongeum book explained the new script's purpose and principles. It aimed to make Korean easier to write for people blocked by older Hanja-based systems.

That is why 렛 is built from parts, not drawn as one symbol. As of 2026, the sources reviewed do not establish a separate ancient history for 렛; South and North Korean orthographies later grew from the 1933 Unified Orthography but diverged in spelling rules.