Great question! In everyday language, the wall outlet itself is already the female end, and the proper term for it is a receptacle. On cords, the female side is usually called a connector or cord-end receptacle.

• In-wall: Receptacle (often just called an outlet)
• On cords: Female connector, socket, or cord connector
• NEMA labeling: An “R” in codes like 5-15R or L14-30R indicates a female receptacle

When you’re choosing a replacement or adapter, match the NEMA pattern, amperage, and voltage shown on your device or cord. Always power off and follow manufacturer instructions; if you’re unsure, consider consulting a qualified professional for safe installation.

On a typical North American polarized female connector (like a NEMA 5-15R), the slots have different sizes to guide safe wiring.

• Narrow slot: Hot
• Wide slot: Neutral
• Round/U-shaped hole: Ground

If you’re installing a replacement cord end, most connectors also mark terminals: brass = hot, silver = neutral, and green = ground. It’s a good idea to verify with a tester and follow the instructions included with your connector. Always disconnect power before working on wiring and, if any part of the process feels uncertain, a licensed electrician can help ensure it’s done correctly and in line with local codes.

The female end of an extension cord is typically called a cord connector, female connector, or socket. In NEMA terms, household cords often use a 5-15R connector (15A, 125V, three-wire grounding). For heavier-duty setups, you’ll also see versions like 5-20R or locking styles (e.g., L5-30R).

• Standard household: NEMA 5-15R
• Higher amperage: NEMA 5-20R
• Locking: NEMA L5-30R, L14-30R, etc.

When replacing a damaged end, match the pattern, voltage, and amperage rating to your cord and devices. Choose indoor vs. outdoor housings as needed, and always install with the power disconnected to help reduce risk.

Here’s a quick guide to the common names you’ll see on cords and outlets:

• Plug (male): The end with prongs/blades that inserts into power; in NEMA codes, it’s marked with a P (e.g., 5-15P, L14-30P).
• Connector/Receptacle (female): The end with slots; in NEMA codes, it’s marked with an R (e.g., 5-15R, L14-30R).
• Outlet (wall/panel): A fixed female receptacle. A panel-mounted male device is typically called an inlet.

Match male to female of the same NEMA pattern, amperage, and voltage for a proper fit. If you’re unsure which style you need (straight-blade vs. locking, for example), checking your device label or consulting a professional can help.

Start by matching what you already have, then choose features that fit your use.

• Confirm ratings: Match amperage and voltage (e.g., 15A/125V, 20A/125V, 30A/125–250V).
• Match the pattern: Use the correct NEMA type (e.g., 5-15R, 5-20R, L14-30R, TT-30R).
• Style: Straight-blade for standard outlets; locking for generators or environments where a twist-lock helps prevent unplugging.
• Cord fit: Choose a body that fits your cord gauge and offers good strain relief.
• Environment: Look for indoor/outdoor housings and relevant safety listings.

Walmart offers a range of options online with pickup and delivery choices. If wiring steps feel unfamiliar, consider getting help from a qualified electrician.