D4L reads immediately as data for life, and that’s not a hypothetical. It’s the kind of name used by health data initiatives, research consortia, and organisations working on making data serve people rather than platforms. Design for learning is a second live reading, used widely in education.
Both sit naturally on the .org, which is where the relevant organisations are. Health data trusts, patient-led research groups, learning design bodies, and open data foundations all use that extension and all would find this name already legible to their audience.
The X4Y convention is well established in exactly this sector. ICT4D, AI4Good, Tech4Good, Math4Life. A funder or a partner organisation reading D4L will parse it correctly on first sight, which is more than can be said for most three-character strings.
Three characters, a working convention, and an extension that matches the buyer.
The name is available. Enquiries welcome.