A. Whenever in this chapter the words “installment thereof” or “installment” are used, such words or word are intended and shall be held to mean one of the equal annual installments of such original assessment, in all cases where local improvement bonds have been or are to be issued in payment of the local improvement made, or where the local improvement is to be paid for in installments.

B. Whenever in this chapter the terms “local improvement assessment,” “local assessment,” “original assessment” or “assessment” are used, such words or word are intended and shall be held to mean any special assessment levied by the city on the property specially benefited, for paying the costs and expense of making local improvements, under the provisions of Chapters 35.43 through 35.56 RCW. (1957 code § 8.04.010.)