Category Overview

Voting — Election Security Glossary

79 election security terms in the Voting category, with definitions sourced from NIST, CISA, EAC, and 30+ authoritative documents.

Browse all 79 terms in Voting

Vote By Mail

Method of casting ballots by which eligible voters are mailed ballots and information packets by the local jurisdiction.

Low consensus6 sources

Valid Vote

A "vote that has been counted as valid or determined to be valid." Mont.

Medium consensus3 sources

Vote

An "indication of support for a particular in a manner supported by the CONTEST CHOICE voting system." VVSG.

Low consensus3 sources

Vote For N Of M

A ballot choice in which voters ar e allowed to vote for a specified number ("N") of candidates in a multi - seat ("M") contest.

Low consensus3 sources

Voter Intent

How the voter attempted to express their vote choices through actions taken to mark, verify, and cast an issued ballot.

Low consensus3 sources

Voting Session

1. The "span of time beginning when a ballot is enabled or activated and ending when that ballot is printed (on an EBM), cast (on a DRE), or SPOILED." The period when a…

Medium consensus3 sources

Visual Format

A display format in which contest options and other information are displayed on screen or paper for perception using sight.

Medium consensus2 sources

Vote Variation

Voting style or feature, including but not limited to the following: approval voting, baseline voting, cumulative voting, N-of-M voting, proportional voting, ranked choice voting,…

Medium consensus2 sources

Voted Ballot

Ballot that contains all of a voter's selections and has been cast.

Medium consensus2 sources

Voting Instructions

Information provided to a voter that describes the procedures for voting.

Low consensus2 sources

By ESG Editorial Team · Drawing on NIST, EAC, CISA, and 29 authoritative sources on election security

Voting encompasses the methods and mechanisms through which citizens exercise their fundamental right to participate in elections. It spans the diverse ways Americans can vote (early in person, by mail, provisionally, or from overseas) and the tools used to mark and record their choices. The terminology of voting reflects both legal structures, especially the Help America Vote Act of 2002, and the technical systems that translate voter intent into recorded votes.

Why this category matters for election security begins with a core principle: the security of an election depends on the ability to verify that votes are cast as intended and counted as cast. This requires three critical capabilities. First, accessibility. Voting systems must be usable by citizens with disabilities, including those with visual and mobility impairments, without compromising security. This is a mandate established by the Americans with Disabilities Act and HAVA. Second, voter verification. When ballots are marked electronically, voters must have the ability to review and confirm a voter-verifiable paper audit trail before their vote is recorded, ensuring they can detect and correct errors. Third, uniformity and transparency. Election officials, observers, and voters themselves must understand and be able to verify the procedures through which votes are cast and recorded.

The terminology in this category reflects the methods and safeguards that operationalize these principles. Absentee and mail voting require distinct security procedures compared to in-person voting, including signature verification and ballot tracking. Provisional ballots serve as a safeguard when voter eligibility is questioned. Accessibility accommodations must be integrated into every method of voting.

UOCAVA provisions extend these protections to military members and overseas citizens, who must be able to register, request, receive, and return ballots from remote locations, often under compressed timelines. The security challenges of remote voting are distinct from those of in-person voting, and the terminology that governs UOCAVA participation reflects those differences.

Key Concepts

Absentee Voting

A method of voting in which a registered voter casts a ballot outside the polling place, either in person during early voting or by mail, with identity verification.

Paper Ballot

A paper record of a voter's selections that the voter can personally inspect before the vote is recorded, enabling verification that electronic systems captured intent correctly.

Ballot Marking Device

Equipment that assists voters in marking choices and produces a paper record, designed to be accessible to voters with disabilities while maintaining a verifiable vote record.

Provisional Ballot

A ballot cast by a voter whose eligibility is uncertain at the time of voting, reviewed and counted during canvassing only if the voter is determined to be eligible.

Early Voting

An in-person voting method in which voters can cast ballots at designated polling locations before election day, expanding access and reducing day-of polling place congestion.

Overvote

A condition in which a voter marks more choices for a contest than allowed, resulting in an invalid vote that is rejected by the tabulation system.

Undervote

A condition in which a voter marks fewer choices for a contest than are available. A key indicator of potential ballot design problems or voter confusion.

Uocava

The Uniformed and Overseas Citizens Absentee Voting Act, enabling military members and citizens abroad to register and vote by absentee ballot with extended deadlines.

Electronic Ballot Delivery

The transmission of blank ballots to voters electronically, typically by email or web portal, enabling remote voters to receive their ballot without postal delays.

How These Terms Relate

These concepts describe the pathways through which citizens vote and the safeguards integrated into each method. Absentee and early voting methods expand access but require distinct security procedures, including identity verification, ballot tracking, and signature matching. Provisional ballots serve as a second-chance mechanism for voters whose eligibility is questioned, with eligibility verified during canvassing. UOCAVA voting extends these protections to overseas and military voters who must navigate postal and logistical barriers. The voting process itself creates accuracy risks: overvotes and undervotes can occur due to voter confusion or unclear ballot design. Ballot marking devices and voter-verifiable paper audit trails are the technical safeguards that detect and mitigate these risks, creating an auditable record that voters can inspect before committing their vote. Together, these concepts establish that secure voting is not a single procedure but a set of parallel pathways, each with its own verification requirements, all converging on a single principle: that every eligible voter's intent is accurately captured and preserved.

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