left alignment; left justification
Used in printing and document layout to describe text aligned to the left margin.
Please print this document with left alignment.
If you left-align it, the right edge becomes uneven.
Compound of 左 (ひだり, 'left') and 寄せ (よせ, the noun form of 寄せる, 'to bring close'). The term is a straightforward description of aligning text to the left.