lit. warp and weft in weaving; vertically and horizontal / length and breadth / criss-crossed / able to move unhindered / abbr. for 合縱連橫|合纵连横[He2 zong4 Lian2 heng2], School of Diplomacy during the Warring States Period (475-221 BC)
lit. warp string in weaving / fig. vertical or north-south lines / to pass through / to cross lengthwise / to pierce (esp. north-south or top-to-bottom)