• compatitions,
• compotitions,
• comparations,
• compitation,
• computaions,
• compettions,
• compultions,
• comptation,
• computitions,
• compittions,
• compititions,
• compocations,
• competetions,
• compitetions,
• competrtions,
• comptitions,
• compications,
• compatation,
• compations,
• competations

• computation,
• computerization,
• competition,
• computationally,
• compatriot,
• computational,
• confutation,
• confutative,
• computerise,
• competitor,
• computable,
• computing,
• competitory.

The adjective form of the word "computations" is "computational".