Add Your Name Alongside Another's on Paperwork
This page is the CodyCross answer for the clue below from Concert Hall, Group 589, Puzzle 2 (Acoustic Design).
Question is: Add Your Name Alongside Another's on Paperwork
and the answer is: COSIGN
Word Meaning:
COSIGN — To sign a document jointly with another person, sometimes as an endorsement.
Definitions from Wiktionary.