TBX is the LISA standard for terminology and term exchange.
For information on more file formats, see conformance.
Note here:
NLS: Extra listing
TBX:
<termNote type="termNote">synonym</termNote>
according to this TBX documentation. In another place:
<termNote type="termType">synonym</termNote>
inside a <termGrp>, following <term>
NLS: term {definition/contextual information}
TBX
<descripGrp> <descrip type="definition">The longish definition of the term</descrip> </descripGrp>
inside langSet <descript> can probably be used directly under langSet
NLS: term {definition/contextual information} (see above)
TBX:
<descrip type="context">A usually somewhat longer contextual sentence.</descrip>
inside <ntig>
NLS: term v. (or adj, or n.)
TBX:
<termNote type="partOfSpeech" >noun</termNote>
following <term>
NLS: alternate term → real lemma
TBX: <ref> TODO
NLS: same as alternate term: a.m. → before noon
TBX: TODO