Native Language ?A language you spoke at home or conversationally before age ~12.
+ add another native language
Languages Learned ?Languages you can hold everyday conversations/maintain friendships in.
Score
0
Similar
Distant
Similarity estimates combine genetic relationship (language family trees), lexical overlap
(shared vocabulary including loanwords from colonial contact, trade, religion), grammatical
typology (word order, morphology, case systems), and areal/Sprachbund effects (Balkan convergence,
Standard Average European, Sino-Xenic vocabulary sphere). Distances calibrated against FSI
difficulty ratings, Ethnologue lexical similarity data, and WALS typological features. Writing
system difficulty only factors in for systems requiring significant memorization effort (CJK
characters, Arabic abjad); Cyrillic, Hangul, and Greek alphabets are treated as trivially learnable.