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“affix”
affix, affixes; affixed; affixing (verb forms)
1. To fasten, join, or attach (usually followed by to): "He wanted to affix stamps to the envelope."
2. To put or to add on; to append: "The salesman wanted her to affix her signature to the contract."
3. To impress (a seal or stamp).
4. To attach (blame, reproach, ridicule, etc.).
5. In grammar, a bound inflectional or derivational element; such as, a prefix, infix, or suffix, added to a base or stem to form a fresh stem or a different word; for example, the suffix, -ed added to "want" to form "wanted", or the prefix, im- added to "possible" to form "impossible".
2. To put or to add on; to append: "The salesman wanted her to affix her signature to the contract."
3. To impress (a seal or stamp).
4. To attach (blame, reproach, ridicule, etc.).
5. In grammar, a bound inflectional or derivational element; such as, a prefix, infix, or suffix, added to a base or stem to form a fresh stem or a different word; for example, the suffix, -ed added to "want" to form "wanted", or the prefix, im- added to "possible" to form "impossible".
To affix a poster to the wall is to fasten it to the wall.