Glossary
Pillar terminology from A to Z.
Updated · April 2026
Short definitions for every term used in Pillar and in this help center.
A#
AADT — Average Annual Daily Traffic. Used in the Traffic community layer.
Absentee owner — An owner whose mailing address differs from the parcel address. Often a filter target for off-market outreach.
Admin — Organization role with billing, membership, and settings control.
AGS — Automatic Geographic Segmentation. Bundled with annual subscriptions. Demographics auto-appended to every parcel.
APN — Assessor's Parcel Number. The county's unique identifier for a parcel.
B#
Basemap — The background map layer (streets, satellite, etc.).
Block group — The Census geographic unit demographics are joined on.
C#
Campaign — An outreach send: audience + creative + schedule.
Centroid — The geographic center point of a polygon. Pillar uses
centroids (pc_point_wkt) for parcel search performance.
Credit — Metered currency for per-unit actions (skip trace, agent work).
D#
Dynamic list — A list that stays in sync with a filter, updating as parcel data changes.
E#
Enrichment — Looking up owner contact info (skip trace) and attaching it to a list.
F#
Filter — Criteria that narrow parcel results.
Fluid compute — Pillar's term for the container runtime that hosts agent sandboxes.
L#
Layer — A dataset overlaid on the map (demographics, zoning, traffic). Layers are for context, not filtering.
List — A saved group of parcels.
M#
Match rate — The percentage of rows in a skip-trace batch that return a successful owner lookup.
N#
NFHL — National Flood Hazard Layer. FEMA's official flood designation data, surfaced as a community layer.
O#
Organization — The unit of billing and collaboration. Everything is scoped to an org.
Outreach — Direct mail campaigns sent through Pillar.
P#
Parcel — A single tax-assessed land record.
Pipeline — The Kanban-style board of projects in the CRM.
Project — A single deal or site being tracked.
S#
Sandbox — An isolated container where an agent session runs.
Skip trace — The process of finding owner contact info.
Static list — A frozen snapshot list that doesn't update with new parcel data.
T#
Tag — A freeform label you can attach to lists, projects, or tasks.
Z#
Zoning — Land-use classification set at the county or municipal level. Sold as an annual add-on.
Zonomics — Pillar's zoning data partner.