IPA: /ˈsɔːŋˌraɪtɪŋ/
KK: /sɔŋˌraɪtɪŋ/
The activity or process of creating music and lyrics for songs.
She is known for her exceptional songwriting skills.
Songwriting → It is formed from "song" (from Old English *sang*, meaning a musical composition) and "writing" (from Old English *writan*, meaning to inscribe or compose). The word "songwriting" refers to the act of composing or inscribing a musical composition.
Think of creating a 'musical composition' ('song') and 'inscribing' it ('writing') — that's what songwriting means.