ARTIFICIAL HORIZONartificial horizon · English · Reference checkedReferenceOpen English WordNet 2024oewn2024:lemma:ARTIFICIAL HORIZONTier 1Ordinal193Pythagorean103Classical183Reverse266Reverse Reduction104Standard1124Final Large1774Ordinal188Reduced53Atbash526Isopsephy1297Ordinal208Abjad1046