WordNet (r) 3.0 (2006):

string out
    v 1: set out or stretch in a line, succession, or series; "the
         houses were strung out in a long row" [syn: string out,
         spread out]

Moby Thesaurus II by Grady Ward, 1.0:

36 Moby Thesaurus words for "string out":
   align, array, bank, chatter, continue, drag out, draw, draw out,
   elongate, extend, fill out, lengthen, lengthen out, let out, line,
   line up, never finish, pad, perorate, produce, prolong, prolongate,
   protract, pull, range, rank, row, run out, speak at length,
   spin out, strain, stretch, stretch out, tauten, tense, tighten