How to sign: convert ordinary language into code
"We should encode the message for security reasons";
Similiar / Same: encode, encipher, cipher, cypher, encrypt, write in code, code
Categories: write
How to sign: register formally as a participant or member
"The party recruited many new members";
Similiar / Same: enroll, enrol, recruit, enter
Categories: register
Within this category: enlist, matriculate, register, unionize