ichidan verb / transitive:

• to set up (a house, store, etc.); to build; to establish; to run; to maintain
• to have at the ready (e.g. a gun); to hold in preparation (e.g. a camera); to prepare in advance (e.g. a meal)
• to adopt a posture; to assume a stance; to stand ready; to be poised for

ichidan verb / intransitive verb:

• to put on an air; to assume an attitude
• to stiffen; to tense up; to become formal

ichidan verb / transitive:

• to fabricate in order to deceive; to make up; to feign
• to plan; to scheme