Arm

The typographical arm resembles a physical outstretched arm. It represents a horizontal or vertical stroke that doesn't connect with another stroke or stem on either one or both ends. The top of the capital T and the horizontal strokes of capital F and E are examples of arms. Additionally, the diagonal upward stroke can also be an arm — like in capital K. Some resources use the terms "arm," "crossbar," or "cross stroke" interchangeably.^[1]