supplementary

extra or additional, especially to help improve something

adicional, suplementario

• supplementary course/lesson
• be supplementary to sth

Collocations supplementary income · supplementary classes

• The university offers a range of supplementary courses.

  La universidad ofrece una variedad de cursos adicionales.

relating to an agreement or document that adds extra information to a main contract or document

suplementario, adicional (en documentos legales)

• supplementary agreement/clause

Collocations supplementary contract terms · supplementary legal documents

• The supplementary clause was added to the main contract.

  La cláusula suplementaria se añadió al contrato principal.