• 1. to place (something) under or beneath
• 2. to support by something laid beneath
• 3. to achieve the correct printing pressure all over (a forme block) or to bring (a block) up to type height by adding material, such as paper, to the appropriate areas beneath it
• 4. a layer, lining, support, etc, laid underneath something else
• 5. material, such as paper, used to underlay a forme or block
• 6. felt, rubber, etc, laid beneath a carpet to increase insulation and resilience

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