sealing

(noun) the act of treating something to make it repel water. Synonyms: waterproofing.

(verb) make tight; secure against leakage. Synonyms: seal, seal off. Example: "Seal the windows."

(verb) close with or as if with a seal. Synonyms: seal. Example: "She sealed the letter with hot wax."

(verb) decide irrevocably. Synonyms: seal. Example: "Sealing dooms."

(verb) affix a seal to. Synonyms: seal. Example: "Seal the letter."

(verb) cover with varnish. Synonyms: varnish, seal.

(verb) hunt seals. Synonyms: seal.