Alignment in enterprise architecture is when all the efforts "line up" to support the organizational strategy, or when lower level detail supports higher level architecture. When all the artifacts agree, you have "alignment". Alignment is often checked by governance.
Examples:
One FEAF artifact, the "line of sight diagram" is a depiction of the project linked through improved performance measures to business outcomes and the organizational strategic goals.
"If you do anything long enough, you eventually get good at it." MK