駢肩

骈肩
piánjiān
shoulder to shoulder

CEDICT

肩膀與肩膀相互連接。形容人數眾多。

重編國語辭典

Entry Composition

1 駢 pián
  1. (of a pair of horses) to pull side by side
  2. to be side by side
  3. to be fused together
  4. parallel (literary style)
2 肩 jiān
  1. shoulder
  2. to shoulder (responsibilities etc)

Related entries

並肩 bìngjiān
  1. alongside
  2. shoulder to shoulder
  3. side by side
  4. abreast
两人并肩站在一起。

These two are standing abreast.

Source: Tatoeba