noun
knitting with multiple strands held together
A knitting technique where two or more yarn strands are treated as a single strand throughout the work, creating a thicker fabric or color effect.
引き揃えで編むと、普通より厚手のセーターができる。
Knitting with strands held together produces a thicker sweater than usual.
このマフラーは2本どりの引き揃えで編まれている。
This scarf is knitted with two strands held together.
The verb form meaning 'to pull together' or 'to align'; 引き揃え is the noun form specifically used in knitting.
Compound of 引き (hiki, continuative form of 引く 'pull') + 揃え (soroe, continuative form of 揃える 'align, gather'). The term describes pulling multiple yarn strands together to align them as one.