Image size is 3.5" x 1.5" or 9cm x 3.5cm The definition of Family 1a. A fundamental social group in society typical consisting of two parents and their children. 1b. Two or more people who share goals and values have long-term commitments to one another. -usually reside in the same dwelling place. 2. All the members of a household under one roof. 3. A group of persons sharing common ancestry. 4. Lineage especially distinguished lineage. Choose between traditional wood mount rubber stamp or rubber cling stamp. The cling stamps are easy to use and easy to mount to an acrylic block.