KEYBOARD INSTRUMENTkeyboard instrument · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:KEYBOARD INSTRUMENTTier 1Ordinal234Pythagorean81Classical220Reverse252Reverse Reduction108Standard1458Final Large1458Ordinal189Reduced54Atbash714Isopsephy2057Ordinal239Abjad1461