1.
line spacing; space between lines
The physical space between lines of text in writing or printing.
2.
between the lines; implied meaning
The unstated or hidden meaning in text or speech, similar to 'reading between the lines' in English.
Composed of 行 (line/row) + 間 (space/between).
SENSE 1 — LINE SPACING:
Used in publishing, word processing, and design.
SENSE 2 — IMPLIED MEANING:
Figurative, meaning the unstated implications behind words.
This figurative sense is especially important in Japanese culture, where indirect communication is valued.