| Subject | English | Spanish |
| transp. | unpublished route | ruta no oficial |
| aeron. | unpublished route | ruta no publicada |
| transp. | unpublished route | aerovía no homologada |
| comp., MS | unpublished site | sitio no publicado (A site that has not been published by any Web publishing rule) |
| libr. | unpublished work | obra inédita |
| libr. | unpublished work | libro inédito |