付き添い【つきそい】
attendance (on), chaperonage, attendant, escort, entourage, chaperon, retinue
添加【てんか】
addition, annexing
添付【てんぷ】
attaching (documents, etc.), appending, affixing
巻き添え【まきぞえ】
getting mixed up in, getting embroiled in, involvement, entanglement, by-blow
添削【てんさく】
correction, looking over, touching up
力添え【ちからぞえ】
help, assistance, service