parallel

[1]	correspond to/with , match , equate to/with , be likened to , correlate to/with , compare with/to , imitate , repeat , echo , iterate , reiterate , duplicate , follow , agree with , keep pace with , conform (to) , balance , set off , offset , even off/up , be accompanied by , coincide with , (Colloq) jibe with
[2]	collimate
[3]	twin , duplicate

[1]	analogue , analog
[2]	latitude , analogue , match , line of latitude , parallel of latitude , homologue , equivalent , complement , counterpart , equal , coequal
[3]	analogy , parallelism , equivalence , complementarity , relationship , kinship , correspondence , resemblance , likeness , similarity , symmetry , equality , coequality , parity , correlation , proportion , balance , equiponderance , equipoise , counterbalance , offset

adj.

[1]	similar , corresponding , congruent , analogous , analogic(al) , correspondent , like , matching , homologous , coordinate , equivalent , coequal , proportional , proportionate , pari passu , mutatis mutandis , in proportion , uniform , contemporary/cotemporary , contemporaneous/cotemporaneous