Translation Japanese English: 第一線

1 Job, agate line, air, ancestry, argument, argumentation, assembly line, bank line, billet, blood, blood line, bloodline, business, business line, cable, channel, communication channel, contrast, course, crease, credit line, crinkle, demarcation, descent, dividing line, furrow, line, line of business, line of credit, line of descent, line of merchandise, line of products, line of reasoning, line of work, lineage, logical argument, melodic line, melodic phrase, melody, note, occupation, origin, parentage, pedigree, personal credit line, personal line of credit, phone line, pipeline, product line, production line, rail line, railway line, seam, short letter, stemma, stock, strain, subscriber line, telephone circuit, telephone line, transmission line, tune, wrinkle.

2 New Wave, avant-garde, cutting edge, forefront, van, vanguard.

3 agate line, assembly line, business line, course, head, header, heading, isotherm, line, line of business, line of merchandise, line of products, phone line, product line, production line, row, straight line, subscriber line, telephone circuit, telephone line.

4 battlefront, cutting edge, forefront, front, front line, frontier, head, vanguard.

5 cutting edge, end, forefront, gunpoint, head, knife edge, point, pointedness, terminal, tip, vanguard.

6 cutting edge, end, forefront, head, peak, point, terminal, tip, vanguard.

7 cutting edge, forefront, line, vanguard.