弦 is a Japanese kanji written with 8 strokes, listed here under the keyword “bowstring”. It is built from 弓 (bow) and 玄 (mysterious). In Remembering the Kanji by James W. Heisig it is frame 1487.
On KumiJi Glyph Explorer, open the parts search and type “bow” + “mysterious”. 弦 is among the results, together with every other character containing the same shapes.
Open 弦 in the interactive kanji search
to expand every part down to its smallest pieces, add your own names and mnemonic stories,
or search for other characters by their parts.