Meaning
Colloquial: a child, kid; slang for a novice, a greenhorn.
See it in the verse
Bacha in Iqbal’s couplets
Tu bacha bacha ke na rakh ise tera aaina hai wo aaina
Ki shikasta ho to azeez-tar hai nigah-e-aaina-saaz mein
Ki shikasta ho to azeez-tar hai nigah-e-aaina-saaz mein
Do not hoard and shield your heart — it is the kind of mirror that, once broken, grows dearer in the eyes of the Mirror-maker.
Love · Courage · Adversity
Tu bacha bacha ke na rakh ise tera aaina hai wo aaina
ke shikasta ho to aziz-tar hai nigah-e-aaina-saaz mein
ke shikasta ho to aziz-tar hai nigah-e-aaina-saaz mein
Do not keep your mirror anxiously protected — yours is the kind of mirror that, even when shattered, is dearer in the eyes of its maker.
Courage · Selfhood · Adversity