Position, rotation and scale of an object.

Every object in a scene has a Transform. It's used to store and manipulate the position, rotation and scale of the object. Every Transform can have a parent, which allows you to apply position, rotation and scale hierarchically. This is the hierarchy seen in the Hierarchy pane. They also support enumerators so you can loop through children using:

// Moves all transform children 10 units upwards!
for (var child : Transform in transform) {
    child.position += Vector3.up * 10.0;
}

using UnityEngine;
using System.Collections;

public class Example : MonoBehaviour {
    void Example() {
        foreach (Transform child in transform) {
            child.position += Vector3.up * 10.0F;
        }
    }
}

import UnityEngine
import System.Collections

public class Example(MonoBehaviour):

	def Example() as void:
		for child as Transform in transform:
			child.position += (Vector3.up * 10.0F)

See Also: The component reference, Physics class.