Definition of ironclad. 1  1 : sheathed in iron armor âused especially of naval vessels. 2  2 : so firm or secure as to be unbreakable: such asa : binding an ironclad oathb : having no obvious weakness an ironclad case against the defendant.
Best Answer: CR means a credit. If this appears on the balance due line of your statement, it means that you owe nothing and that you are that much ahead of future charges and no payment or acknowledgment is needed.
Best Answer: CD means Certificate of Deposit and is a way the bank has your money for a fixed period of time, pays interest to you on it and loans it to others. It is safer than investments, but might be a LITTLE riskier than a savings account. It always pays more interest than a savings account.