Abstract. The essential characteristic of a signed language corpus is that it has been anno-tated, and not, contrary to the practice of many signed language researchers, that it has been transcribed. Annotations are necessary for corpus-based investigations of signed or spoken languages. Multi-media annotation software can now be used to transform a recording into a machine-readable text without it first being necessary to transcribe the text, provided that linguistic units are uniquely identified and annotations subsequently appended to these units. These unique identifiers are here referred to as ID-glosses. The use of ID-glosses is only possible if a reference lexical database (i.e., dictionary) exists as the result of prior foundation research into the lexicon. In short, the creators of signed language corpora should prioritize annotation above transcription, and ensure that signs are identified using unique gloss-based annotations. Without this the whole rationale for corpus-creation is un-dermined.