• airspac,
• aiirspace,
• airspase,
• zir space,
• sir space,
• wir space,
• qir space,
• aur space,
• ajr space,
• akr space,
• aor space,
• a9r space,
• a8r space,
• aie space,
• aid space,
• aif space,
• ait space,
• ai5 space,
• ai4 space,
• air apace

The adjective form of the word "air space" is "airspace".

The plural of the "air space" can be the "air spaces".

The singular of the "air space" can be the "air space".