Following are all the theonine like words, in the list below.
THEANINE
100% like theonine
THEIN
100% like theonine
THEINE
99.99% like theonine
THREONONE
99.99% like theonine
NANTENINE
99.98% like theonine
CATHARANTINE
99.98% like theonine
AMINOPHENONE
99.98% like theonine
NICOTHIANAMINE
99.97% like theonine
TRYTOPHAN
99.97% like theonine
THEASAPONIN
99.96% like theonine
GALOCATECHIN
99.96% like theonine
NITROALANINE
99.96% like theonine
TERANDRINE
99.95% like theonine
TECOMINE
99.95% like theonine
TECLEAMANIENSINE
99.94% like theonine
MATEINE
99.94% like theonine
ANTHRANYLATE
99.94% like theonine
TILIAMOSINE
99.93% like theonine
TANSHINNONE
99.93% like theonine
ATISINE
99.92% like theonine
THEOGALLIN
99.92% like theonine
THREONIN
99.92% like theonine
ANABASEINE
99.91% like theonine
OCTAPINE
99.91% like theonine
METHYLLANTHIONINE
99.9% like theonine
OPIANINE
99.9% like theonine
YAJENINE
99.9% like theonine
ERGOTHIONENE
99.89% like theonine
THIEPANE
99.89% like theonine
THEMOSPERMINE
99.88% like theonine
THIOXANTHINE
99.88% like theonine
NOMININE
99.88% like theonine
AZONINE
99.87% like theonine
SACCAROPINE
99.87% like theonine
NEOCUPRIONE
99.86% like theonine
THIEPIN
99.86% like theonine
TAONIANONE
99.86% like theonine
SACCHARAPINE
99.85% like theonine
KINURENINE
99.85% like theonine
THEOPHYLLINE
99.84% like theonine
BENZANIDINE
99.84% like theonine
TRYPTOPHANE
99.84% like theonine
OTOSENINE
99.83% like theonine
THEOBROMINE
99.83% like theonine
PAYNANTHEINE
99.82% like theonine
TETRATENNESSIDE
99.82% like theonine
PEONINE
99.82% like theonine
TETRAMINE
99.81% like theonine
PHENATHROLINE
99.81% like theonine
NICOTIANIN
99.8% like theonine
NEOCUPRINE
99.8% like theonine
STATINE
99.8% like theonine
TRIDECAMANGANESE
99.79% like theonine
THREONINE
99.79% like theonine
ANNOTININE
99.78% like theonine
XANTHIONE
99.78% like theonine
ENNIATINE
99.78% like theonine
DODECAMINE
99.77% like theonine
ALLYSINE
99.77% like theonine
SININE
99.76% like theonine
TEAGHRELIN
99.76% like theonine
OTONECINE
99.76% like theonine
HISTADINE
99.75% like theonine
TETRAAMINE
99.75% like theonine
THIONINE
99.74% like theonine
ZEATIN
99.74% like theonine
CONINE
99.74% like theonine
KANSOSAMINE
99.73% like theonine
TERAZOLIUM
99.73% like theonine
MATRINE
99.72% like theonine
AJANINE
99.72% like theonine
XANTHIN
99.72% like theonine
LANTHOPINE
99.71% like theonine
TALATISAMINE
99.71% like theonine
PALYTHINE
99.7% like theonine
ANHALONINE
99.7% like theonine
BATHOPHENANTROLINE
99.7% like theonine
PHENANTHROLENE
99.69% like theonine
GUANIDINUM
99.69% like theonine
ACTOGENIN
99.68% like theonine
THIAZEPINE
99.68% like theonine
THIEPINE
99.68% like theonine
LANTANOID
99.67% like theonine
ACTOSYRINGONE
99.67% like theonine
BENZAMINIDINE
99.66% like theonine
WRIGHTINE
99.66% like theonine
FLAVONONE
99.66% like theonine
ENANTATE
99.65% like theonine
GENTIANIN
99.65% like theonine
ANNONAINE
99.64% like theonine
TANNIN
99.64% like theonine
AMINONITRENE
99.64% like theonine
ALTHEINE
99.63% like theonine
AMINOPHENANTHRENE
99.63% like theonine
EPIAUSTRALINE
99.62% like theonine
METHANIMINE
99.62% like theonine
THYRONAMINE
99.62% like theonine
MIMOSINE
99.61% like theonine
SOLASONINE
99.61% like theonine
THIOURYLENE
99.6% like theonine