noun

1. A machine that tabulates the amount of sales transactions, makes a permanent and cumulative record of them, and has a drawer in which cash can be kept.

2. A point of sale.

Synonyms: till

noun

1. A formal recording of names, events, transactions etc.

   “The teacher took the register by calling out each child's name.”

2. A book of such entries.

3. An entry in such a book.

verb

1. To enter in a register.

2. To enroll, especially to vote.

3. To record, especially in writing.

Synonyms: enroll, put down